Outlook 2003 blocks outgoing e-mail messages that are medium to la
 

Go to Tools-E-mail accounts. Ensure the screen you see now is showing view or
change existing email accounts is selected. Then select next.

Ensure the E-mail account you are trouble with is high lighted before
selecting change. Then select change & a new screen will apprear. You should
see and area where you can do alot of things, but want you are looking for to
possibly solve your problem is a selection for more settings. Select more
settings, then there will be some tabs to choose from, choose advance tab:
Look on this screen and will see a slider bar that pertains to server
timeouts. In default I think this is only set on about 1 minute, try moving
the slider to at least half way, or if you want move it all the way (10
min.). Then select OK, this screen will then close. The screen still open you
need to select the "NEXT" option to continue so that you can save your
changes. The last screen you see, you need to select "FINISH". You will now
be back to your normal Outlook screen. See if our timeout error is gone! I
had a very similiar problem and this solved your particular problem.

"James Fonger, M.D." wrote:

Outlook 2003 e-mail works fine without attachments or with small Word
documents attached. However with standard size Word attachments or larger,
including PDF's etc. the Send hangs with the error message #OX800CCCOF saying
it can't find the outgoing e-mail server. The mail server and my ISP are
working fine. I have a Linksys residential router that works. The problem
occurs despite having Norton e-mail filtering turned off, parental filtering
not filtering e-mail, and my Norton Personal Firewall and Windows internal
firewall turned off. Is this a Windows problem, an Outlook problem, or a
Norton problem and how should I proceed with a stepwise troubleshooting to
solve this? Some have said I should uninstall and re-install Outlook but I am
not sure this is the answer. Please advise.
--
James Fonger
interested user with a tough problem