Hi all.

My Outlook 2003 retrieves emails from a POP3 server. I set to "Leave a copy
of messages on the server" and "Remove from server when deleted from
'Deleted Items'". I wrote a COM Add-in using VC++ 6.0

When recieved a new mail from certain sender, I can catch the
ItemAdd event and use CDO Message-Delete() to permanently delete that
new email. But the email has not been deleted from the POP3 server.

I guess there is a looking-up table in Outlook. When I delete an Email in
"Deleted Items Folder", Outlook find ID of that email and set a value. It
uses that value to notify the POP3 server next time to delete corresponding
email
with the same ID on the server.

I think maybe CDO doesn't tell Outlook that "an email was deleted and please
tell
POP3 Server to delete the copy when connected next time".

Is that true and how to solve it? If you can do it using other programming
language
like VB please tell me anyway.

Thank you. :-)

--------
Beijing, China

Outlook stores the list of the message ids in a hidden message
(PR_MESSAGE_CLASS = "IPM.MessageManager") in the Inbox.
However there is no way to tell the POP3 provider in Outlook to delete a
particular message from a POP3 server.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" Rui wrote in message
...
Hi all.

My Outlook 2003 retrieves emails from a POP3 server. I set to "Leave a
copy
of messages on the server" and "Remove from server when deleted from
'Deleted Items'". I wrote a COM Add-in using VC++ 6.0

When recieved a new mail from certain sender, I can catch the
ItemAdd event and use CDO Message-Delete() to permanently delete that
new email. But the email has not been deleted from the POP3 server.

I guess there is a looking-up table in Outlook. When I delete an Email in
"Deleted Items Folder", Outlook find ID of that email and set a value. It
uses that value to notify the POP3 server next time to delete
corresponding
email
with the same ID on the server.

I think maybe CDO doesn't tell Outlook that "an email was deleted and
please
tell
POP3 Server to delete the copy when connected next time".

Is that true and how to solve it? If you can do it using other programming
language
like VB please tell me anyway.

Thank you. :-)

--------
Beijing, China

So do you think CDO "Message.Delete" method does not delete (maybe forget to
delete) message ids in that hidden message? If this is true, can my add-in
access that hidden message in the Inbox and delete ids?

Thank you.

"Dmitry Streblechenko" wrote:

Outlook stores the list of the message ids in a hidden message
(PR_MESSAGE_CLASS = "IPM.MessageManager") in the Inbox.
However there is no way to tell the POP3 provider in Outlook to delete a
particular message from a POP3 server.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" Rui wrote in message
...
Hi all.

My Outlook 2003 retrieves emails from a POP3 server. I set to "Leave a
copy
of messages on the server" and "Remove from server when deleted from
'Deleted Items'". I wrote a COM Add-in using VC++ 6.0

When recieved a new mail from certain sender, I can catch the
ItemAdd event and use CDO Message-Delete() to permanently delete that
new email. But the email has not been deleted from the POP3 server.

I guess there is a looking-up table in Outlook. When I delete an Email in
"Deleted Items Folder", Outlook find ID of that email and set a value. It
uses that value to notify the POP3 server next time to delete
corresponding
email
with the same ID on the server.

I think maybe CDO doesn't tell Outlook that "an email was deleted and
please
tell
POP3 Server to delete the copy when connected next time".

Is that true and how to solve it? If you can do it using other programming
language
like VB please tell me anyway.

Thank you. :-)

--------
Beijing, China

No, it does not delete the message id.
Yes, you can access the list of message ids. If you are using CDO 1.21, use
the Folder.HiddenMessages to find the corresponding message. Look at the
hidden messages with OutlookSpy (click IMAPIFolder, go to the "Associated
Contents" tab) or MFCMAPI.
I don't see however how that will help you - if you delete that message id,
POP3 provider will assume that it is a new message and download it again.
This is the opposite of what you are trying to achieve.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
So do you think CDO "Message.Delete" method does not delete (maybe forget
to
delete) message ids in that hidden message? If this is true, can my add-in
access that hidden message in the Inbox and delete ids?

Thank you.

"Dmitry Streblechenko" wrote:

Outlook stores the list of the message ids in a hidden message
(PR_MESSAGE_CLASS = "IPM.MessageManager") in the Inbox.
However there is no way to tell the POP3 provider in Outlook to delete a
particular message from a POP3 server.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" Rui wrote in message
...
Hi all.

My Outlook 2003 retrieves emails from a POP3 server. I set to "Leave a
copy
of messages on the server" and "Remove from server when deleted from
'Deleted Items'". I wrote a COM Add-in using VC++ 6.0

When recieved a new mail from certain sender, I can catch the
ItemAdd event and use CDO Message-Delete() to permanently delete that
new email. But the email has not been deleted from the POP3 server.

I guess there is a looking-up table in Outlook. When I delete an Email
in
"Deleted Items Folder", Outlook find ID of that email and set a value.
It
uses that value to notify the POP3 server next time to delete
corresponding
email
with the same ID on the server.

I think maybe CDO doesn't tell Outlook that "an email was deleted and
please
tell
POP3 Server to delete the copy when connected next time".

Is that true and how to solve it? If you can do it using other
programming
language
like VB please tell me anyway.

Thank you. :-)

--------
Beijing, China

Thank you MVP. I use your OutlookSpy and it's great!

I find the hidden message and find Outlook stores message ids (UIDL) getting
from POP3 Server in the attachments of that hidden message. The names of
attachments are Blobxxxxxxxx (8 x), Restagsxxxxxxxx (also 8 x),
Deletedxxxxxxxx (also 8 x). There are 3 Blob files, 3 Restags files, and 3
Deleted files, because I have 3 POP3 accounts. Then I have some questions and
need your help.

1. Since I have 3 POP3 accounts, how do I know which Blob, Restags, Deleted
files belong to each of my account?

2. I know the UIDL id stores in Blob file. When I permanently delete a
message, Outlook add its UIDL to Deleted file. I think when logons to POP3
server next time, Outlook will read Deleted file and send DELE command to
POP3 server. If my COM Add-in could add UIDL to Deleted file (in the hidden
message) when permanently deleted a message, Outlook would send DELE command
to POP3 server and delete copy of the message. The first thing I have to do
is get UIDL. I cannot find where UIDL was stored. Is there any relation
between EntryID and UIDL? It's easy to get EntryID.

You are an excellent expert in this area and and I believe you can find a
good way. And I really really really need your help. :-)

Thank you so much!

"Dmitry Streblechenko" wrote:

No, it does not delete the message id.
Yes, you can access the list of message ids. If you are using CDO 1.21, use
the Folder.HiddenMessages to find the corresponding message. Look at the
hidden messages with OutlookSpy (click IMAPIFolder, go to the "Associated
Contents" tab) or MFCMAPI.
I don't see however how that will help you - if you delete that message id,
POP3 provider will assume that it is a new message and download it again.
This is the opposite of what you are trying to achieve.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
So do you think CDO "Message.Delete" method does not delete (maybe forget
to
delete) message ids in that hidden message? If this is true, can my add-in
access that hidden message in the Inbox and delete ids?

Thank you.

"Dmitry Streblechenko" wrote:

Outlook stores the list of the message ids in a hidden message
(PR_MESSAGE_CLASS = "IPM.MessageManager") in the Inbox.
However there is no way to tell the POP3 provider in Outlook to delete a
particular message from a POP3 server.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" Rui wrote in message
...
Hi all.

My Outlook 2003 retrieves emails from a POP3 server. I set to "Leave a
copy
of messages on the server" and "Remove from server when deleted from
'Deleted Items'". I wrote a COM Add-in using VC++ 6.0

When recieved a new mail from certain sender, I can catch the
ItemAdd event and use CDO Message-Delete() to permanently delete that
new email. But the email has not been deleted from the POP3 server.

I guess there is a looking-up table in Outlook. When I delete an Email
in
"Deleted Items Folder", Outlook find ID of that email and set a value.
It
uses that value to notify the POP3 server next time to delete
corresponding
email
with the same ID on the server.

I think maybe CDO doesn't tell Outlook that "an email was deleted and
please
tell
POP3 Server to delete the copy when connected next time".

Is that true and how to solve it? If you can do it using other
programming
language
like VB please tell me anyway.

Thank you. :-)

--------
Beijing, China

Now I find the place where the message stores the UIDL message ids.

Using OutlookSpy, selete a message, then click IMessage button. In "Property
Tag" list of "GetProps" tab, 0x8016 (|ID=0x8f01) is UIDL message ids. The
BINARY value can be parsed to "POP://xxxxxxxx".

I use CDO and OOM and have not used MAPI yet. Do you think using MAPI is the
only way to get this value? Could you give me some example of using MAPI?

I googled and found your another article which said to add these lines:
#define INITGUID
#include objbase.h

#define USES_IID_IMessage

#include mapix.h
#include mapitags.h
#include mapidefs.h
#include mapiutil.h
#include mapiguid.h

These are codes in my program:
CComPtr IUnknown spUnknown;
CComPtr IMessage spIMessage;
spNewMail-get_MAPIOBJECT(&spUnknown); // point to a message
spUnknown-QueryInterface(IID_IMessage, (void **)&spIMessage);

I get two link errors:
error LNK2001: unresolved external symbol _IID_IMessage
fatal error LNK1120: 1 unresolved externals

Could you tell me how to resolve it? Thank you. :-)


"Dmitry Streblechenko" wrote:

No, it does not delete the message id.
Yes, you can access the list of message ids. If you are using CDO 1.21, use
the Folder.HiddenMessages to find the corresponding message. Look at the
hidden messages with OutlookSpy (click IMAPIFolder, go to the "Associated
Contents" tab) or MFCMAPI.
I don't see however how that will help you - if you delete that message id,
POP3 provider will assume that it is a new message and download it again.
This is the opposite of what you are trying to achieve.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
So do you think CDO "Message.Delete" method does not delete (maybe forget
to
delete) message ids in that hidden message? If this is true, can my add-in
access that hidden message in the Inbox and delete ids?

Thank you.

"Dmitry Streblechenko" wrote:

Outlook stores the list of the message ids in a hidden message
(PR_MESSAGE_CLASS = "IPM.MessageManager") in the Inbox.
However there is no way to tell the POP3 provider in Outlook to delete a
particular message from a POP3 server.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" Rui wrote in message
...
Hi all.

My Outlook 2003 retrieves emails from a POP3 server. I set to "Leave a
copy
of messages on the server" and "Remove from server when deleted from
'Deleted Items'". I wrote a COM Add-in using VC++ 6.0

When recieved a new mail from certain sender, I can catch the
ItemAdd event and use CDO Message-Delete() to permanently delete that
new email. But the email has not been deleted from the POP3 server.

I guess there is a looking-up table in Outlook. When I delete an Email
in
"Deleted Items Folder", Outlook find ID of that email and set a value.
It
uses that value to notify the POP3 server next time to delete
corresponding
email
with the same ID on the server.

I think maybe CDO doesn't tell Outlook that "an email was deleted and
please
tell
POP3 Server to delete the copy when connected next time".

Is that true and how to solve it? If you can do it using other
programming
language
like VB please tell me anyway.

Thank you. :-)

--------
Beijing, China

I've written this and it works:

CComPtr IUnknown spUnknown;
CComPtr IMessage spIMessage;
spNewMail-get_MAPIOBJECT(&spUnknown);
spUnknown-QueryInterface(IID_IMessage, (void **)&spIMessage);

SPropTagArray Array;
LPSPropTagArray lpArray = &Array;
lpArray-cValues = 1;
lpArray-aulPropTag[0] = 0x80160102;

ULONG FAR lpcValues;
LPSPropValue lppPropArray;
HRESULT hr = spIMessage-GetProps(lpArray, NULL, &lpcValues, &lppPropArray);

int nStrCount = lppPropArray-Value.bin.cb;
_bstr_t bstrPOPString((wchar_t *)lppPropArray-Value.bin.lpb);
char * cPOPString = bstrPOPString;
ATLTRACE("POPSTRING = %s\n", cPOPString);

I do not forget to free them like this:
MAPIFreeBuffer((void *)lpcValues);
MAPIFreeBuffer(lppPropArray);

The UIDL message id have been stored in bstrPOPString. The next step is to
add it to the corresponding attachment of hidden message. I don't know how to
find the exact attachment because I have 3 "Deletedxxxxxxxx" files.

I cannot get its property tag like PR_XXXXXX style because it has no name in
MAPITAGS.H file. Instead, I use 0x80160102 directly. Do you think its
property tag is different in other computers installed Outlook 2003?

Thank you.


"Dmitry Streblechenko" wrote:

No, it does not delete the message id.
Yes, you can access the list of message ids. If you are using CDO 1.21, use
the Folder.HiddenMessages to find the corresponding message. Look at the
hidden messages with OutlookSpy (click IMAPIFolder, go to the "Associated
Contents" tab) or MFCMAPI.
I don't see however how that will help you - if you delete that message id,
POP3 provider will assume that it is a new message and download it again.
This is the opposite of what you are trying to achieve.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
So do you think CDO "Message.Delete" method does not delete (maybe forget
to
delete) message ids in that hidden message? If this is true, can my add-in
access that hidden message in the Inbox and delete ids?

Thank you.

"Dmitry Streblechenko" wrote:

Outlook stores the list of the message ids in a hidden message
(PR_MESSAGE_CLASS = "IPM.MessageManager") in the Inbox.
However there is no way to tell the POP3 provider in Outlook to delete a
particular message from a POP3 server.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" Rui wrote in message
...
Hi all.

My Outlook 2003 retrieves emails from a POP3 server. I set to "Leave a
copy
of messages on the server" and "Remove from server when deleted from
'Deleted Items'". I wrote a COM Add-in using VC++ 6.0

When recieved a new mail from certain sender, I can catch the
ItemAdd event and use CDO Message-Delete() to permanently delete that
new email. But the email has not been deleted from the POP3 server.

I guess there is a looking-up table in Outlook. When I delete an Email
in
"Deleted Items Folder", Outlook find ID of that email and set a value.
It
uses that value to notify the POP3 server next time to delete
corresponding
email
with the same ID on the server.

I think maybe CDO doesn't tell Outlook that "an email was deleted and
please
tell
POP3 Server to delete the copy when connected next time".

Is that true and how to solve it? If you can do it using other
programming
language
like VB please tell me anyway.

Thank you. :-)

--------
Beijing, China

You cannot hardcode the property tag; it is a named property, you must call
IMessage::GetIDsFromNames first.
I don't know how those messages are mapped to the accounts, sorry. Did you
try to see if anything is available through the IOlkAccountManager (you can
access it through Misc | IOlkAccountManager in OutlookSpy)?

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
I've written this and it works:

CComPtr IUnknown spUnknown;
CComPtr IMessage spIMessage;
spNewMail-get_MAPIOBJECT(&spUnknown);
spUnknown-QueryInterface(IID_IMessage, (void **)&spIMessage);

SPropTagArray Array;
LPSPropTagArray lpArray = &Array;
lpArray-cValues = 1;
lpArray-aulPropTag[0] = 0x80160102;

ULONG FAR lpcValues;
LPSPropValue lppPropArray;
HRESULT hr = spIMessage-GetProps(lpArray, NULL, &lpcValues,
&lppPropArray);

int nStrCount = lppPropArray-Value.bin.cb;
_bstr_t bstrPOPString((wchar_t *)lppPropArray-Value.bin.lpb);
char * cPOPString = bstrPOPString;
ATLTRACE("POPSTRING = %s\n", cPOPString);

I do not forget to free them like this:
MAPIFreeBuffer((void *)lpcValues);
MAPIFreeBuffer(lppPropArray);

The UIDL message id have been stored in bstrPOPString. The next step is to
add it to the corresponding attachment of hidden message. I don't know how
to
find the exact attachment because I have 3 "Deletedxxxxxxxx" files.

I cannot get its property tag like PR_XXXXXX style because it has no name
in
MAPITAGS.H file. Instead, I use 0x80160102 directly. Do you think its
property tag is different in other computers installed Outlook 2003?

Thank you.


"Dmitry Streblechenko" wrote:

No, it does not delete the message id.
Yes, you can access the list of message ids. If you are using CDO 1.21,
use
the Folder.HiddenMessages to find the corresponding message. Look at the
hidden messages with OutlookSpy (click IMAPIFolder, go to the "Associated
Contents" tab) or MFCMAPI.
I don't see however how that will help you - if you delete that message
id,
POP3 provider will assume that it is a new message and download it again.
This is the opposite of what you are trying to achieve.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
So do you think CDO "Message.Delete" method does not delete (maybe
forget
to
delete) message ids in that hidden message? If this is true, can my
add-in
access that hidden message in the Inbox and delete ids?

Thank you.

"Dmitry Streblechenko" wrote:

Outlook stores the list of the message ids in a hidden message
(PR_MESSAGE_CLASS = "IPM.MessageManager") in the Inbox.
However there is no way to tell the POP3 provider in Outlook to delete
a
particular message from a POP3 server.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" Rui wrote in message
...
Hi all.

My Outlook 2003 retrieves emails from a POP3 server. I set to "Leave
a
copy
of messages on the server" and "Remove from server when deleted from
'Deleted Items'". I wrote a COM Add-in using VC++ 6.0

When recieved a new mail from certain sender, I can catch the
ItemAdd event and use CDO Message-Delete() to permanently delete
that
new email. But the email has not been deleted from the POP3 server.

I guess there is a looking-up table in Outlook. When I delete an
Email
in
"Deleted Items Folder", Outlook find ID of that email and set a
value.
It
uses that value to notify the POP3 server next time to delete
corresponding
email
with the same ID on the server.

I think maybe CDO doesn't tell Outlook that "an email was deleted
and
please
tell
POP3 Server to delete the copy when connected next time".

Is that true and how to solve it? If you can do it using other
programming
language
like VB please tell me anyway.

Thank you. :-)

--------
Beijing, China

I have got the whole relations of UIDL message id, attachment file name of
the hidden message, and POP Account ID! And I have got the values in my
program. Thanks for your great OutlookSpy!

Select a message -- IMessage -- GetProps -- Property Tag == 0x8013
The first 8 number of 0x8013 value is POP Account ID. It's HEX and must be
changed to DEC.

In the same window, the value whose Property Tag is equle to "0x8016
(|ID=0x8f01)" is the UIDL message id.

Misc -- IOlkAccountManager
PROP_ACCT_ID is the POP Account ID got from IMessage.

Misc -- IOlkAccountManager -- select an account and click "FindAccount"
The pVar of dwProp whose value is equal to "PT_LONG, 0x0003" is the
attachment file ID of the hidden file. For example, my value is "2192694955".
When changed to HEX, it will be "82b1deab". So the attachment file names of
hidden message in Inbox are "Blob82b1deab", "Restags82b1deab" and
"Deleted82b1deab".

What I have to do now is to add the UIDL message id to the attachment file
whose name is "Deleted82b1deab". Could you tell me how to add something in an
attachment using CDO?

Thank you and have a good day! :-)


"Dmitry Streblechenko" wrote:

You cannot hardcode the property tag; it is a named property, you must call
IMessage::GetIDsFromNames first.
I don't know how those messages are mapped to the accounts, sorry. Did you
try to see if anything is available through the IOlkAccountManager (you can
access it through Misc | IOlkAccountManager in OutlookSpy)?

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
I've written this and it works:

CComPtr IUnknown spUnknown;
CComPtr IMessage spIMessage;
spNewMail-get_MAPIOBJECT(&spUnknown);
spUnknown-QueryInterface(IID_IMessage, (void **)&spIMessage);

SPropTagArray Array;
LPSPropTagArray lpArray = &Array;
lpArray-cValues = 1;
lpArray-aulPropTag[0] = 0x80160102;

ULONG FAR lpcValues;
LPSPropValue lppPropArray;
HRESULT hr = spIMessage-GetProps(lpArray, NULL, &lpcValues,
&lppPropArray);

int nStrCount = lppPropArray-Value.bin.cb;
_bstr_t bstrPOPString((wchar_t *)lppPropArray-Value.bin.lpb);
char * cPOPString = bstrPOPString;
ATLTRACE("POPSTRING = %s\n", cPOPString);

I do not forget to free them like this:
MAPIFreeBuffer((void *)lpcValues);
MAPIFreeBuffer(lppPropArray);

The UIDL message id have been stored in bstrPOPString. The next step is to
add it to the corresponding attachment of hidden message. I don't know how
to
find the exact attachment because I have 3 "Deletedxxxxxxxx" files.

I cannot get its property tag like PR_XXXXXX style because it has no name
in
MAPITAGS.H file. Instead, I use 0x80160102 directly. Do you think its
property tag is different in other computers installed Outlook 2003?

Thank you.


"Dmitry Streblechenko" wrote:

No, it does not delete the message id.
Yes, you can access the list of message ids. If you are using CDO 1.21,
use
the Folder.HiddenMessages to find the corresponding message. Look at the
hidden messages with OutlookSpy (click IMAPIFolder, go to the "Associated
Contents" tab) or MFCMAPI.
I don't see however how that will help you - if you delete that message
id,
POP3 provider will assume that it is a new message and download it again.
This is the opposite of what you are trying to achieve.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
So do you think CDO "Message.Delete" method does not delete (maybe
forget
to
delete) message ids in that hidden message? If this is true, can my
add-in
access that hidden message in the Inbox and delete ids?

Thank you.

"Dmitry Streblechenko" wrote:

Outlook stores the list of the message ids in a hidden message
(PR_MESSAGE_CLASS = "IPM.MessageManager") in the Inbox.
However there is no way to tell the POP3 provider in Outlook to delete
a
particular message from a POP3 server.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" Rui wrote in message
...
Hi all.

My Outlook 2003 retrieves emails from a POP3 server. I set to "Leave
a
copy
of messages on the server" and "Remove from server when deleted from
'Deleted Items'". I wrote a COM Add-in using VC++ 6.0

When recieved a new mail from certain sender, I can catch the
ItemAdd event and use CDO Message-Delete() to permanently delete
that
new email. But the email has not been deleted from the POP3 server.

I guess there is a looking-up table in Outlook. When I delete an
Email
in
"Deleted Items Folder", Outlook find ID of that email and set a
value.
It
uses that value to notify the POP3 server next time to delete
corresponding
email
with the same ID on the server.

I think maybe CDO doesn't tell Outlook that "an email was deleted
and
please
tell
POP3 Server to delete the copy when connected next time".

Is that true and how to solve it? If you can do it using other
programming
language
like VB please tell me anyway.

Thank you. :-)

--------
Beijing, China

CDO does nott allow to modify the attachment data directly, so you wowuld
need to save the attachment as a file, modify it, delete the old attachment,
add the new one.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
I have got the whole relations of UIDL message id, attachment file name of
the hidden message, and POP Account ID! And I have got the values in my
program. Thanks for your great OutlookSpy!

Select a message -- IMessage -- GetProps -- Property Tag == 0x8013
The first 8 number of 0x8013 value is POP Account ID. It's HEX and must be
changed to DEC.

In the same window, the value whose Property Tag is equle to "0x8016
(|ID=0x8f01)" is the UIDL message id.

Misc -- IOlkAccountManager
PROP_ACCT_ID is the POP Account ID got from IMessage.

Misc -- IOlkAccountManager -- select an account and click "FindAccount"
The pVar of dwProp whose value is equal to "PT_LONG, 0x0003" is the
attachment file ID of the hidden file. For example, my value is
"2192694955".
When changed to HEX, it will be "82b1deab". So the attachment file names
of
hidden message in Inbox are "Blob82b1deab", "Restags82b1deab" and
"Deleted82b1deab".

What I have to do now is to add the UIDL message id to the attachment file
whose name is "Deleted82b1deab". Could you tell me how to add something in
an
attachment using CDO?

Thank you and have a good day! :-)


"Dmitry Streblechenko" wrote:

You cannot hardcode the property tag; it is a named property, you must
call
IMessage::GetIDsFromNames first.
I don't know how those messages are mapped to the accounts, sorry. Did
you
try to see if anything is available through the IOlkAccountManager (you
can
access it through Misc | IOlkAccountManager in OutlookSpy)?

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
I've written this and it works:

CComPtr IUnknown spUnknown;
CComPtr IMessage spIMessage;
spNewMail-get_MAPIOBJECT(&spUnknown);
spUnknown-QueryInterface(IID_IMessage, (void **)&spIMessage);

SPropTagArray Array;
LPSPropTagArray lpArray = &Array;
lpArray-cValues = 1;
lpArray-aulPropTag[0] = 0x80160102;

ULONG FAR lpcValues;
LPSPropValue lppPropArray;
HRESULT hr = spIMessage-GetProps(lpArray, NULL, &lpcValues,
&lppPropArray);

int nStrCount = lppPropArray-Value.bin.cb;
_bstr_t bstrPOPString((wchar_t *)lppPropArray-Value.bin.lpb);
char * cPOPString = bstrPOPString;
ATLTRACE("POPSTRING = %s\n", cPOPString);

I do not forget to free them like this:
MAPIFreeBuffer((void *)lpcValues);
MAPIFreeBuffer(lppPropArray);

The UIDL message id have been stored in bstrPOPString. The next step is
to
add it to the corresponding attachment of hidden message. I don't know
how
to
find the exact attachment because I have 3 "Deletedxxxxxxxx" files.

I cannot get its property tag like PR_XXXXXX style because it has no
name
in
MAPITAGS.H file. Instead, I use 0x80160102 directly. Do you think its
property tag is different in other computers installed Outlook 2003?

Thank you.


"Dmitry Streblechenko" wrote:

No, it does not delete the message id.
Yes, you can access the list of message ids. If you are using CDO
1.21,
use
the Folder.HiddenMessages to find the corresponding message. Look at
the
hidden messages with OutlookSpy (click IMAPIFolder, go to the
"Associated
Contents" tab) or MFCMAPI.
I don't see however how that will help you - if you delete that
message
id,
POP3 provider will assume that it is a new message and download it
again.
This is the opposite of what you are trying to achieve.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" wrote in message
...
So do you think CDO "Message.Delete" method does not delete (maybe
forget
to
delete) message ids in that hidden message? If this is true, can my
add-in
access that hidden message in the Inbox and delete ids?

Thank you.

"Dmitry Streblechenko" wrote:

Outlook stores the list of the message ids in a hidden message
(PR_MESSAGE_CLASS = "IPM.MessageManager") in the Inbox.
However there is no way to tell the POP3 provider in Outlook to
delete
a
particular message from a POP3 server.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Rui Feng" Rui wrote in message
...
Hi all.

My Outlook 2003 retrieves emails from a POP3 server. I set to
"Leave
a
copy
of messages on the server" and "Remove from server when deleted
from
'Deleted Items'". I wrote a COM Add-in using VC++ 6.0

When recieved a new mail from certain sender, I can catch the
ItemAdd event and use CDO Message-Delete() to permanently delete
that
new email. But the email has not been deleted from the POP3
server.

I guess there is a looking-up table in Outlook. When I delete an
Email
in
"Deleted Items Folder", Outlook find ID of that email and set a
value.
It
uses that value to notify the POP3 server next time to delete
corresponding
email
with the same ID on the server.

I think maybe CDO doesn't tell Outlook that "an email was deleted
and
please
tell
POP3 Server to delete the copy when connected next time".

Is that true and how to solve it? If you can do it using other
programming
language
like VB please tell me anyway.

Thank you. :-)

--------
Beijing, China