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


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.

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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
. 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could be as simple as a setting, or it could require an upgrade to a newer
version of the anti-virus scanner.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

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

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28 comments on “I get "Error Number: 0x800CCC19" when sending email – how do I fix it?”

  1. 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..

  2. 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?

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. -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: ‘’
    Windows Live Mail Error ID: 0x800CCC0F
    Protocol: SMTP
    Port: 25
    Secure(SSL): No

  8. 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.

  9. Thanks, Leo. Yesterday, OE didn’t like my password and, as you say, Google was my friend. I did as everything suggested, but it didn’t fix the problem. I shut down and went to bed. Today, my password was fine, but I got this error instead. I had no intention of messing with AVG as it has always worked beautifully for me, but I opened it up to have a look. I found the databased needed updating, which I duly did. Before doing anything drastic (turning things off or deleting files) I went back to OE. This time everything worked beautifully, and I have just downloaded about 200 messages!

  10. 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. i find this file n delete but this is not work in pc

  11. I had the exact same problem today for the first time ever. I also have access to my e-mail via the internet, so I moved all incoming messages to a temporary folder then tested each e-mail one by one until I found the offending mail that was hanging things up and killed it. Thanks for the help!


  12. Error Number: 0x800CCC19
    this error keep coming up no matter what i do from what i see on your website.?? please help. i have uninstall all spy hunter and xsodt and reg cure, turn my antivirus off but still no luck.
    its for ifrance server

    please help me someone
    thank you

  13. I’ve been trying to send email to Yahoo Account from my Outlook Express but I’ve been receiving Internet Delivery Failure like this:
    Recipient address: [personal email address removed]
    Reason: Rejection greeting returned by server.
    Diagnostic code: smtp;553 Mail from not allowed – []
    Remote system: dns; (Mail from not allowed – [])

  14. Your web page helped a lot. After I had my computer reformatted, I had to reset my email setings. I have 2 IPs, but receive my email though only one of them. On one of the accounts I could send but not receive. I kept getting an 0x800CCC error. First there was a B ending, then 19, then back to B. After several hours on the phone and checking with my antivirus, I read your webpage carefully and then went to server in tools to make any changes I could find. I checked the box “My server requires authentication.” Presto, it was working again.
    Thank you. You saved me.

  15. An unknown error has occurred. Account: ‘PeoplePC Online’, Server: ‘’, Protocol: POP3, Port: 110, Secure(SSL): No, Error Number: 0x800C0133

  16. Can’t thank you enough. I am not a computer genius, but I can hold my own and you nailed it! Thanks so much! I just went in and turned off the mail scanner and everything I’ve been missing started rolling in!

  17. I just changed over to a different computer using windows xp pro. I transferred my outlook express from my old computer to the new and now I am unable to send emails, receiving an error code of 0x800CCC19. I also installed Trend Internet Security on this machine. Any help or suggestions would be greatly appreciated. Thanks, Tony

  18. Good Day Sir /
    Actually i have the error 0x800CCC19 in my outlook mail after i transfered my outlook emails from a PC to another whenever i want to login my inbox it show this error number and denies me to login which i don’t really know the problem and how it can be resolved, i need your help , i don’t have anti-virus in my PC

  19. I get this same error (Error Number: 0x800CCC19) on this computer. I’m running xp sp3 and am using avast antivirus and my ISP is Verizon. The curious thing is that I am running the same set up on another computer and have NO problems sending or receiving emails. I guess it has to be the AV since when I unclicked the scan outgoing box on this computer it started sending with out a problem. What would effect one computer running the same OS and AV with the same settings and not the other? Thanks in advance.

    Often it’s a timing issue, and one computer being faster than the other is enough of a difference.


  20. I have this issue also. I am a 40 PC user company and have been experiencing this intermittantly through the day. It is not the AV on my side. Anything I have erad points to an issue at our email providers server. I am on the phone as I write. I know for sure it is not AV because everything has been working fine for years and then suddenly today I have issues. I doubt that 40 PC’s can suddenly fail with AV when they all worked fine before today. Besides if you wait long enough the mail goes, so how do you answer that if it is AV.
    Another point of view.

    Remember that AV software does update frequently – daily perhaps – and if all machines use the same AV software and take the same update on the same day as they should they could all manifest the same problem at the same time. I’m not saying this *is* the problem, but I’m not quite as quick to rule out AV interference.


  21. I’ve had this 0x800CCC19 timeout error for Years, especially when sending Large messages with multiple recipients (3 different anti-virus, with outgoing scan disabled)?-
    XP then Win 7- Outlook Express, and now Windows Live Mail.

    Leo was right with me (thanks!)! Solution-
    I let my anti-virus scan the incoming message, then “Fully Exit Before” i Send.
    Try it!

  22. My Problem Solved . . .

    While receiving this Error in Receiving, just check after disabling your Antivirus program,


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