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 It could be as simple as a setting, or it could require an upgrade to a newer version of the anti-virus scanner.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

Article C2849 - November 23, 2006 « »

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Leo Leo A. Notenboom has been playing with computers since he was required to take a programming class in 1976. An 18 year career as a programmer at Microsoft soon followed. After "retiring" in 2001, Leo started Ask Leo! in 2003 as a place for answers to common computer and technical questions. More about Leo.

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30 Comments
Michael Price
February 15, 2007 10:39 AM

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..

Robert Adam
July 25, 2007 7:21 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?

Ken
November 24, 2007 8:48 PM

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.

Hugh
December 16, 2007 2:47 AM

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.

Rick Kirchoff
January 4, 2008 1:18 PM

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.

ELIAS
January 14, 2008 4:10 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

Kristi
February 15, 2008 6:53 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

linda mallia
March 23, 2008 8:49 AM

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.

David
April 22, 2008 1:32 PM

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

Julia Royce
October 9, 2008 2:33 AM

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!

VINEY
October 22, 2008 3:54 AM

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

John S
November 7, 2008 2:26 PM

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!

-John

Kush
February 3, 2009 12:17 PM

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
www.ifrance.com

please help me someone
thank you

Kell
February 7, 2009 4:23 AM

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 213.42.1.90 not allowed - []
Remote system: dns;a.mx.mail.yahoo.com (Mail from 213.42.1.90 not allowed - [])

Richard Lutz
February 24, 2009 3:03 PM

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.

Lawrence C Spencer
March 4, 2009 11:46 AM

I get error 0x8CCC15. How do I fix it?

Kevin Hoover
April 6, 2009 6:09 PM

An unknown error has occurred. Account: 'PeoplePC Online', Server: 'pop.peoplepc.com', Protocol: POP3, Port: 110, Secure(SSL): No, Error Number: 0x800C0133

Kirstyn
August 8, 2009 5:58 AM

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!

Tony C
November 17, 2009 9:43 AM

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

Qaisar
December 4, 2009 12:44 AM

i have no anti virus installed on my pc. and i also have deleted pop3uidl.dbx. yet i am receiving that error. plz help

Al Hegarty
February 10, 2010 8:55 AM

I could not get my email using Outlook or Outlook Express without getting Error Number: 0x800CCC19. Verizon is my ISP and I’m using FIOS. Verizon technical support said I should contact Microsoft but I decided to do some more research when I came upon your website. Your article nailed the problem. My Norton 360 anti-virus email scanner was causing the problem. I stopped scanning of incoming email and that resolved the problem. I’ll contact Symantec for a fix. Thanks!

Hussein
June 4, 2010 6:18 PM

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

Jorge
August 17, 2010 7:40 PM

OF COURSE it was the pop3uidl.dbx!! It's been years since I last got that error, and I had completely forgotten. I erased it and everything was OK. This file can be erased without problems as it will be created next time you start Outlook. BUT. There is always a but. If you are using POP3 and keeping a copy of downloaded mail on the server, this file is where O.E. keeps track of what was already downloaded. It means that if you delete it, everything will be downloaded again. A workaround is to move everything from the Inbox to another folder, deactivate the rules if you have any, and then erase the file and download. Then erase from Inbox the mail you already had, move everything back to the Inbox, activate the rules if you had any and apply them so it acts upon the new mail. Et voilà.

Rafael
February 27, 2011 3:00 PM

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.
Leo
28-Feb-2011

Michael
June 28, 2011 12:49 PM

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.
Leo
29-Jun-2011

Scott
August 18, 2011 1:05 PM

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!

Gouri Sharma
August 31, 2011 11:43 PM

Dear Sir
Actually i have the error 0x800CCC19 in my outlook mail after i transferred my outlook emails from a PC to another whenever i want to send receive my mail that time 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


Rick Lasnier
November 23, 2011 1:46 PM

where do I begin to look, so I can locate the following: pop3uidl.dbx? Thanks in advance.

Mark J
November 23, 2011 11:41 PM

@Rick
It is normally located here:

c:\Documents and Settings\{user name}\Local Settings\Application Data\Identities\{a very long obscure name with letters numbers and dashes}\Microsoft\Outlook Express\

Hassaan
May 15, 2012 9:48 PM

My Problem Solved . . .

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

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