Please whitelist cPanel in your adblocker so that you’re able to see our version release promotions, thanks!

The Community Forums

Interact with an entire community of cPanel & WHM users!

SMTP failing

Discussion in 'E-mail Discussion' started by teck, Oct 25, 2001.

  1. teck

    teck Well-Known Member

    Joined:
    Aug 10, 2001
    Messages:
    164
    Likes Received:
    0
    Trophy Points:
    316
    I have a server that is causing a lot of problems for the users. It appears SMTP started to fail last night. Here is an excerpt:

    An unknown error has occurred. Subject \'Re: Excitement!\', Account: \'John Doe, Server: \'mail.domain.com\', Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0B

    It\'s not just one user but almost everyone who\'s trying to send mail through the server. Receiving mail works fine though.
     
    #1 teck, Oct 25, 2001
  2. Annette

    Annette Well-Known Member PartnerNOC

    Joined:
    Aug 12, 2001
    Messages:
    445
    Likes Received:
    0
    Trophy Points:
    316
    Anything in /var/log/exim_mainlog?
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #2 Annette, Oct 29, 2001
  3. Bravo

    Bravo Well-Known Member

    Joined:
    Oct 30, 2001
    Messages:
    71
    Likes Received:
    0
    Trophy Points:
    306
    teck,

    Same thing happened to me on a VO box. Same symptoms, error message, the works.

    Turned out that the customers who had problems sending email, did not have SMTP authorization activated. Once they corrected it everything went back to normal.
     
    #3 Bravo, Nov 3, 2001
  4. Nico

    Nico Well-Known Member

    Joined:
    Dec 5, 2001
    Messages:
    233
    Likes Received:
    0
    Trophy Points:
    316
    Location:
    Edmond, OK
    Same Here

    We are getting this on our servers as well:
    , Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0

    Any ideas?
     
    #4 Nico, Feb 19, 2002
  5. felix220

    felix220 Active Member

    Joined:
    Aug 12, 2001
    Messages:
    29
    Likes Received:
    0
    Trophy Points:
    301
    the SMTP problem seems to be spreading.. many people who have had no problem for months are now unable to send mail.. and all the config changes don't fix it.. it doesn't happen with all ISP's though.. and so far only Outlook.. any possible causes??
     
    #5 felix220, Feb 20, 2002
  6. teck

    teck Well-Known Member

    Joined:
    Aug 10, 2001
    Messages:
    164
    Likes Received:
    0
    Trophy Points:
    316
    This thread was from last year and although it's resolved, I still see it occasionally.
     
    #6 teck, Feb 20, 2002
  7. Curt

    Curt Well-Known Member

    Joined:
    Oct 16, 2001
    Messages:
    90
    Likes Received:
    0
    Trophy Points:
    306
    Annette,
    How did you end up fixing this, I just started getting it since the exim 4 upgrade?

    An unknown error has occurred. Subject 'Wednesday Training', Account: 'xxx.com', Server: 'xxx.com', Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0B

    cPanel.net Support Ticket Number:
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #7 Curt, Jul 21, 2003
  8. anand

    anand Well-Known Member

    Joined:
    Nov 11, 2002
    Messages:
    1,435
    Likes Received:
    1
    Trophy Points:
    168
    Location:
    India
    cPanel Access Level:
    DataCenter Provider
    same here, every now and then this probs is popping at random with customers.

    cPanel.net Support Ticket Number:
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #8 anand, Jul 21, 2003
  9. bonnmac

    bonnmac Well-Known Member

    Joined:
    Apr 26, 2003
    Messages:
    101
    Likes Received:
    0
    Trophy Points:
    166
    Anyone have a fix? I've not had this problem before but now since upgrade to S82 it's happening on all 8 of my cPanel servers. Help please if anyone can.

    cPanel.net Support Ticket Number:
     
    #9 bonnmac, Aug 20, 2003
  10. moogle

    moogle Well-Known Member

    Joined:
    Apr 7, 2003
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    156
    I'm having this problem, on Cpanel 6.4
    Can't get it to work at all..

    cPanel.net Support Ticket Number:
     
    #10 moogle, Aug 30, 2003
  11. crazyshells

    crazyshells Member

    Joined:
    Oct 21, 2003
    Messages:
    9
    Likes Received:
    0
    Trophy Points:
    151
    i had the same problem but fixed it.

    I had the same problem on my server but I fixed it somehow messing with alot of files.

    Ya may want to check to see if /var/log/maillog
    exists


    Also whenever you do change something. Try restarting exim.

    I also rebooted my server too. I did alot even did the commands given in this thread.

    The problem I was having was that I couldn't send mail but I could recieve it.
     
    #11 crazyshells, Nov 13, 2003
(You must log in or sign up to post here.)
Loading...
Similar Threads - SMTP failing
  1. Ahamed Husain

    Failing to connect smtp server

    Ahamed Husain, Nov 20, 2018, in forum: E-mail Discussion
    Replies:
    5
    Views:
    499
    cPanelMichael
    Nov 27, 2018
  2. Daniel Yi

    PCI Scan failing on SMTP Service Cleartext Login Permitted

    Daniel Yi, Jun 4, 2018, in forum: E-mail Discussion
    Replies:
    6
    Views:
    914
    cPanelMichael
    Jun 6, 2018
  3. Remitur

    Where is the SMTP log located?

    Remitur, Jun 27, 2019, in forum: E-mail Discussion
    Replies:
    3
    Views:
    294
    cPanelLauren
    Jun 27, 2019
  4. BubbaTrading

    EXIM Crashes FIrewall SMTP Stops Authenticating

    BubbaTrading, Jun 13, 2019, in forum: E-mail Discussion
    Replies:
    6
    Views:
    337
    cPanelLauren
    Jun 17, 2019
  5. 0306x

    SMTP error from remote mail server after RCPT

    0306x, Jun 3, 2019, in forum: E-mail Discussion
    Replies:
    6
    Views:
    519
    cPanelMichael
    Jun 10, 2019

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice