First, certainly agree with Russ that exporting contact info purely for the
purposes of moving info between 2 computers is definitely not the "optimum"
approach (particularly if exporting/importing to a PST file via Outlook's
import/export wizard and especially between 2 different versions of Outlook
but that's an "after the fact" statement. One thing we hate is dealing with
is contact info in a PST file created by Outlook's import/export wizard. The
few times we have had to because of reported problems - issues have arisen
more often then not and ultimate causes were found NOT to be related to our
import/export products which were accused as being the cause of the problems
encountered but rather the source PST file being used and/or issues with the
Outlook config itself.)

Assume that the error your encountering (0x80070057 =
MAPI_E_INVALID_PARAMETER) is for O'2007 and that everything otherwise
appears normal when reviewing the info for the contact (such as no
extraneous characters in the email field etc). A few things to ask/suggest:

#1 - If you create a new contact (a duplicate for the one that results in
the error when sending an email) - does the problem still exist? If no, then
likely cause is a corrupted copntact record in the PST file.
#2 - Run a ScanPST on your PST file to resolve any errors that may exist in
your PST file and see if the problem persists?
#3 - Repair your Outlook installation.

If all of that fails - copy your contacts again from your work machine by
copying a PST file containing your contacts. Either copy your current PST
file which will contain all email etc or create a new PST and new Contact
folder and MOVE contacts from original PST to new PST/Contact Folder - then
open new PST file in O'2007.

If you imported your data from a format other then a PST file, would be hard
pressed to believe that the Outlook import process itself was the cause.
More likely than not being some other pre-existing issue with your Outlook
config that simply got noticed/highlighted after any import/export.

Karl
__________________________________________________ _
Karl Timmermans - The Claxton Group
ContactGenie - Importer 1.3 / DataPorter 2.0 / Exporter
"Power contact importers/exporters for MS Outlook '2000/2007"
http://www.contactgenie.com



"dema" wrote in message
...
Hi,
I have transferred (export/import) my contacts from the computer at work
(outlook 2003) to the computer at home (outlook 2007).
Now when I try to send message to certain contacts I receive this error
message:
! "Task - Sending" reported error (0x80070057): "Could not
complete the operation. One or more parameter values are not valid."
Can someone help me please?
Thank you
dema