Results 1 to 7 of 7

Thread: [SOLVED] Zimbra & Outlook Self Signed Cert Error?

  1. #1
    drsprite is offline Member
    Join Date
    Jul 2008
    Posts
    14
    Rep Power
    6

    Default [SOLVED] Zimbra & Outlook Self Signed Cert Error?

    Hello all,

    I think I have narrowed down my troubles for a remote user to that of certificate problems.

    I have found what I believe to be the latest cert I created in this directory, /opt/zimbra/ssl/zimbra/ca/newcerts/. I have downloaded the .pem, renamed it to .crt so that I can import into the Windows Certificate store. It imports successfully, and I verify that the expiration date matches that of the one displayed in the Admin Console.

    However, when I try and send an email from within Outlook with my mail server setup as an IMAP connection, I see the following error in my logs:

    Code:
    Sep 21 13:16:19 mail postfix/smtpd[8723]: lost connection after EHLO from (hostname removed) [ip removed]
    I have disabled zimbraMtaTlsAuthOnly, and the account can send email fine. When it's set to TRUE I run into this problem, which is why I don't think Outlook is playing nicely with my certificates - even after I have imported them into Windows.

    I'm at a loss here.

    Any thoughts?

    Thanks
    Last edited by drsprite; 09-21-2010 at 10:33 AM.

  2. #2
    drsprite is offline Member
    Join Date
    Jul 2008
    Posts
    14
    Rep Power
    6

    Default

    Can anyone offer any help? I have a couple users who cannot access email through Outlook, and I think it may be a certificate error causing the disconnected on EHLO - but unsure.

    Thanks

  3. #3
    drsprite is offline Member
    Join Date
    Jul 2008
    Posts
    14
    Rep Power
    6

    Default

    Anyone? Bueller?

    I'm open to anything (except for using Thunderbird since that isn't an option of my clients).

    Thanks

  4. #4
    phoenix is online now Zimbra Consultant & Moderator
    Join Date
    Sep 2005
    Location
    Vannes, France
    Posts
    23,201
    Rep Power
    56

    Default

    Why don't you get them to use the correct Submission port of 587 (instead of port 25, which I assume is what you're currently using)? That will require Authentication to send mail.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  5. #5
    drsprite is offline Member
    Join Date
    Jul 2008
    Posts
    14
    Rep Power
    6

    Default

    Thanks for the reply Bill. I will have him try port 587. As a word of note however, port 25 works for everyone else.

    In case he continues to fail on port 587, any other suggestions?

  6. #6
    phoenix is online now Zimbra Consultant & Moderator
    Join Date
    Sep 2005
    Location
    Vannes, France
    Posts
    23,201
    Rep Power
    56

    Default

    Quote Originally Posted by drsprite View Post
    Thanks for the reply Bill. I will have him try port 587. As a word of note however, port 25 works for everyone else.
    They should all be using port 587 as it's the correct Submission port, port 25 is for an MTA to communicate with another MTA.

    Quote Originally Posted by drsprite View Post
    In case he continues to fail on port 587, any other suggestions?
    Offhand I can't think of anything unless (a long shot) they have a firewall or ant-virus/anti-malware program that's scanning their mail ports or mail clients.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  7. #7
    drsprite is offline Member
    Join Date
    Jul 2008
    Posts
    14
    Rep Power
    6

    Default

    Awesome. port 587 worked great. You were right, once I put in port 587, Outlook finally had prompted me to accept the certificate.

    Weird because I am seeing that on port 25 as well for other Outlook setups.

    In any event, I won't question it. Thanks for the help

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Recover the mail after the crash HDD
    By MrSnaKe in forum Administrators
    Replies: 3
    Last Post: 12-02-2009, 04:38 AM
  2. Replies: 15
    Last Post: 11-24-2009, 08:46 AM
  3. Installation zimbra Initializing ldap...failed. (28416)
    By farrukh.nadeem in forum Installation
    Replies: 10
    Last Post: 08-14-2009, 06:52 AM
  4. [SOLVED] Zimbra logwatch.
    By nishith in forum Administrators
    Replies: 5
    Last Post: 06-10-2009, 04:42 PM
  5. Upgrade to ZCS 5.10
    By blozancic in forum Installation
    Replies: 0
    Last Post: 10-21-2008, 08:03 AM

Posting Permissions

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