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  1. #1

    Question no route to host w/ outlook but not w/ thunderbird

    I have a very strange problem.

    I can send mail and everything else with thunderbird, squirrelmail, and even through command line, but I can not send mail using outlook.

    When ever I try to use outlook to send mail I get the following error in my mail.log

    Jan 3 14:31:21 mailserver postfix/smtpd[18495]: connect from unknown[192dot168dot69dot1]
    Jan 3 14:31:21 mailserver postfix/smtpd[18495]: 29098B43A9: client=unknown[192dot168dot69dot1]
    Jan 3 14:31:21 mailserver postfix/cleanup[18454]: 29098B43A9: message-id=<D148A6488B104F26B8DCED586170C606 * laptop>
    Jan 3 14:31:21 mailserver postfix/qmgr[18226]: 29098B43A9: from=<nytridr*mydomain dot com>, size=10356, nrcpt=1 (queue active)
    Jan 3 14:31:21 mailserver postfix/smtp[18498]: connect to tnknox01-smtp-01-public^uscc^com[165dot27dot240dot1]:25: No route to host
    Jan 3 14:31:23 mailserver postfix/smtpd[18495]: disconnect from unknown[192dot168dot69dot1]

    When I use thunderbird then everything goes through with out a problem

    Jan 3 14:42:58 mailserver postfix/smtp[18801]: 76E6FB43A6: to=<my.wife*>, relay=none, delay=1183, delays=1180/0.03/3.1/0, dsn=4.4.1, status=deferred (connect to wimidd01-smtp-01-public dot uscc dot com[]:25: No route to host)
    Jan 3 14:43:07 mailserver postfix/anvil[18708]: statistics: max connection rate 3/60s for (smtp: at Jan 3 14:39:46
    Jan 3 14:43:07 mailserver postfix/anvil[18708]: statistics: max connection count 2 for (smtp space :174.dot132dot123dot98) at Jan 3 14:39:46
    Jan 3 14:43:07 mailserver postfix/anvil[18708]: statistics: max cache size 1 at Jan 3 14:39:35

    I think it has something to do with outlook and postfix, but for the life of me I can not figure it out.

    Let me know what info you would like to see, but I do not think it is a configuration problem. Is there something I can add to make it were it would be more compatible with outlook?


    PS I had to get creative to post this.. I could not post any URL types in this post since I have not posted more then 15 post..:( ... hard to believe I never posted on here before even though I use this all the time.

    * = @
    ^ / dot = .

  2. #2
    Penguin of trust elija's Avatar
    Join Date
    Jul 2004
    Either at home or at work or down the pub
    It looks like you are using Outlook on an IP that postfix isn't set up to relay for. Unfortunately, I can be no more help than that at the moment as I have never set up Postfix.

    Should you be sitting wondering,
    Which Batman is the best,
    There's only one true answer my friend,
    It's Adam Bloody West!

    The Fifth Continent

  3. #3


    everything is set up normally. have plain / tls / ssl all set up and through thunderbird i can connect and send mail with out any problems. i have it set for you have to log in before sending mail, which works with thnderbird but not with outlook. the only thing i can think off is that outlook is not communicating correctly with postfix. so any suggestions would be welcomed.

  4. $spacer_open

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