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I get "Error Number: 0x800CCC19" when sending email - how do I fix it?

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Summary: Error Number 0x800CCC19 is a timeout, which can be caused by many things. Most common appears to be interference by your anti-virus program.

How do I resolve the error message "Error Number: 0x800CCC19" when sending a message in Outlook Express in Microsoft Windows XP?

This is one of those times when Google really is your friend. A search on just the error number 0x800CCC19 returns lots and lots of relevant items.

And most seem to center on one particular cause.

At the top of the results list (at least when I looked) was a Microsoft Knowledgebase article: Error message when you view a POP3 e-mail account with antivirus software installed: The operation timed out waiting for a response from the receiving (POP) server 0x8004210a. It's not a particularly helpful article, stating on that this error has been seen when some anti-virus packages are used to scan email. It then points you at the various anti-virus vendors for more information.

The common thread among all the anti-virus related reports is simple: your anti-virus program is interfering with the upload, or download, of email as it attempts to perform a virus scan on the messages being transmitted. In the configuration of your anti-virus program, turn off the "real time" or active scanning of email being sent or received - if the problem goes away, you now know the cause.

"The common thread among all the anti-virus related reports is simple: your anti-virus program is interfering ...

If that was the cause the next thing to do is, as the MS article indicated, check with the manufacturer of that anti-virus program for a possible fix. It could be as simple as a setting, or it could require an upgrade to a newer version of the anti-virus scanner. Or they may not have a solution, and you'll have to leave the real time scanning of email turned off, or switch to a different anti-virus solution.

Whether or not to leave real-time virus scanning turned on for your email is a personal decision. If you, and everyone that uses your computer, is good at identifying suspicious email, and not opening unknown attachments, then it's quite possible you don't need it. On the other hand, if you're not sure it's a nice feature to leave enabled for that additional security.

In the Google results on 0x800CCC19 there's also a report of corruption in the "pop3uidl.dbx" file. The solution presented is to exit Outlook Express, delete that file, and then restart OE. I'm always nervous just deleting potentially important files, so my recommendation is that rather than deleting it, you rename it. That way if you need it back for any reason, you still have it.

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Article 10945 | Posted November 23, 2006

Recent Comments

I finally fixed this error by running a 'Live Update' session with Norton Internet Security. I believe this is being caused by one of their update patches, but their latest ones seem to fix it. Worked for me..

Posted by: Michael Price at February 15, 2007 10:39 AM

I have the same problem and this doesnt fix it, i have vista so all the instructions on how to find this pop3uidl.dbx are wrong, i cant beleive i just spent over a grand on this pc and i cant send an email?

Posted by: Robert Adam at July 25, 2007 07:21 AM

Thank you very much. I've trying to fix my email for weeks. I'll just leave email scanning turned off in McAfee, though I may try the pop...dbx idea.

Posted by: Ken at November 24, 2007 08:48 PM

I had real trouble with this errort twice. The first time I fixed it relying on the suggestion that you turn off your virus scan program. The second time that did not work, nor did turning of the pop3uidl file by renaming it. The simple solution I found was to go to my ISP who helped go to the mailbox there and delete all non-essential incoming mail before I opened Outlook Express. That did the trick.

Posted by: Hugh at December 16, 2007 02:47 AM

This helped some of my problems with gmail but now I am having other problems. I can send mail to 3 contacts but no more than 3 at a time.

Posted by: Rick Kirchoff at January 4, 2008 01:18 PM

Dear Leo:
I have Windows Vista and I get "Error Number: 0x800CCC19" when sending email - how do I fix it?
I can send emails via webmail of my ISP by not from Windows Mail.
I uninstalled the mail check antivirus. It still does not work.
Please help me.
regards,
ELIAS

Posted by: ELIAS at January 14, 2008 04:10 PM

-mail. I have a new computer and it now has Windows Live Mail. I get the following message when I try to send an e-mail. your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity.

Subject 'hi'
Server: 'smtpauth.earthlink.net'
Windows Live Mail Error ID: 0x800CCC0F
Protocol: SMTP
Port: 25
Secure(SSL): No

Posted by: Kristi at February 15, 2008 06:53 PM

when i try to send email it faile's becose am on pop3 and i dont know how to change it hope you can help please HELP ,id port 110 no secure ssl,id no is ox8oocccod.

Posted by: linda mallia at March 23, 2008 08:49 AM

I had the problem with Windows Live Mail. It was just about repairing the installation and it helped. D.

Posted by: David at April 22, 2008 01:32 PM

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