I can't be of much help without the error message and other info, but maybe
the information at these two Comcast links could shed some light on the
problem.

Comcast error message:

'550 67.170.25.107 blocked by ldapu=rbl,dc=comcast,dc=net
http://www.comcast.net/help/faq/inde...uritySpam17867

Comcast Setup FAQs:
http://www.comcast.net/help/faq/index.jsp?faq=Hot117481
--
Bruce Hagen
MS-MVP Outlook Express
Imperial Beach, CA

"ruffinready" wrote in message
...
She was online. She was able to access the internet okay. However, she
couldn't receive or send mail to the mail server at Comcast.net. She got
an
error message with a "hex" error code, sorry but I didn't copy it down.

"Bruce Hagen" wrote:

What do you mean by *Blocked*? Why is she not online? Does the Status Bar
indicate she is offline?

General precautions for Outlook Express:

Do not archive mail in default OE folders. They will eventually become
corrupt. Create your own user defined folders for storing mail and move
your
mail to them. Empty Deleted Items folder regularly. Keep user created
folders under 100MB, and Default folders as empty as is feasible.

After you are done, follow up by compacting your folders manually while
working *offline* and do it often.

Click on Outlook Express at the top of the folder tree so no folders are
open. Then: File | Work Offline (or double click Working Online in the
Status Bar). File | Folder | Compact all folders. Don't touch anything
until
the compacting is completed.

Turn off e-mail scanning in your anti-virus program. It is a redundant
layer
of protection that eats up CPUs and causes a multitude of problems such
as
time-outs and account setting changes. Your up-to-date A/V program will
continue to protect you sufficiently. For more, see:
http://www.oehelp.com/OETips.aspx#3

In Tools | Options | Maintenance: Uncheck Compact messages in background
and
leave it unchecked. {N/A if running XP/SP2}.

And backup often.

Backup & Resto
http://www.insideoutlookexpress.com/backup/

This is a great two click program:

Outlook Express Quick Backup (OEQB)
http://www.oehelp.com/OEBackup/Default.aspx
--
Bruce Hagen
MS-MVP Outlook Express
Imperial Beach, CA

"ruffinready" wrote in message
...
My wife is blocked in trying to send or receive email, or output to a
network
printer. She has about 400MB in her inbox and about 300MB in her sent
folder
(5 years!) She is active in an Ovarian Cancer Digest and keeps a lot of
her
mail. If she deletes or moves a lot of the contents of these two
folders
to
local folders, how do get her back on line?