Results 1 to 4 of 4

Thread: problem in sending mails through pop3 account

Hybrid View

  1. #1
    Join Date
    Dec 2007
    Rep Power

    Default problem in sending mails through pop3 account


    From last 2 days, my few users are getting below message while sending mails :

    "Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity. Subject 'TM', Account: 'abc', Server: '', Protocol: SMTP, Port: 25, Secure(SSL): No, Socket Error: 10053, Error Number: 0x800CCC0F"

    They are using Outlook express with pop3 setting.

    My Server configuration is :

    Enable POP3/IMAP service = Yes
    Enable SSL for POP3/IMAP = no
    Enable clear test login for POP3/IMAP = Yes

    Right now 4 users got affected and getting same message while sending. they are able to recevie the mails without any issue.
    This morning one of the user was able to send mail but while sending attchment he got same error. and now again he is not able to send mail without attchement. This is very strange.

    I google this error and got very helpful link from microsoft :

    Troubleshooting error messages that you receive when you try to send and receive e-mail in Outlook and Outlook Express

    Server Error: 451, Socket Error: 10053, Error Number: 0x800CCC0F - Windows XP

    As per Microsoft support below are the reasons to get such error while doing send / receive. I have performed all possible steps as mentioned below :-

    1. You are not connected to the Internet or a network, or your mail server is temporarily unavailable ---> I am able to telnet to from user's desktop on port 25 and 110
    2. Your account settings are incorrect - I have personally checked user's configuration and server account settings. Both are perfect.
    3. The configuration of your AV software is incorrect --> disable the antivirus
    4. The configuration of your personal firewall software is incorrect --> I have disabled windows firewall.
    5. An e-mail item on your POP3 server is damaged. --> The same account is working fine in internet lab without any issue. Means there is no problem with user's mailbox account
    6. Your user profile in Outlook is damaged. --> Need to check
    7 . Outlook Express was removed from the computer or the installation is damaged. --> Need to check

    Now i asked my other support team to reinstall outlook express on one of the user for testing purpose..but now i again got one more call regarding same error message now I am feeling that do i need to perform any steps from server end ??? so just wanted to confirm with you .....

    Have anyone one ever face such issue ??

    Please suggest and help...


  2. #2
    Join Date
    Dec 2007
    Rep Power


    one more thing mentioned by microsoft 5th point :

    An e-mail item on your POP3 server is damaged.

    What it to check it at server end ??

    And i tested in Microsoft office outlook also..same error ....

    And yes..some of the users are able to send and receive without any issue so i configure one of user's mailbox which is getting above error on that pc but again same error message !!!!!!!!!!

  3. #3
    Join Date
    Dec 2007
    Rep Power


    it will be great if anyone suggest me solution or clue to fix this ..


  4. #4
    Join Date
    Dec 2007
    Rep Power


    just wanted to update that this problem got resolved. i contact antivirus vender and found that it was happening due to antivirus update...

Similar Threads

  1. Adding Hotmail Account always fails - WHY? What to do?
    By TygerZoyd in forum General Questions
    Replies: 13
    Last Post: 10-03-2013, 06:42 PM
  2. Replies: 4
    Last Post: 02-20-2009, 12:29 AM
  3. Replies: 1
    Last Post: 12-09-2008, 12:31 AM
  4. Default sending account
    By chawkins88 in forum General Questions
    Replies: 16
    Last Post: 10-03-2008, 04:54 PM
  5. Problem sending mails in Outlook
    By americo in forum Zimbra Connector for Outlook
    Replies: 2
    Last Post: 07-04-2008, 01:08 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts