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Thread: Puzzling HELO Rejects

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  1. #1
    Join Date
    Jan 2006
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    Default Puzzling HELO Rejects

    I have very little postfix experience; please be gentle.

    I'm seeing random odd rejects in my zimbra.log:

    Feb 2 13:08:36 webmail postfix/smtpd[7819]: connect from 062.fictionwise.com[206.137.17.62]
    Feb 2 13:08:36 webmail postfix/smtpd[7819]: NOQUEUE: reject: RCPT from 062.fictionwise.com[206.137.17.62]: 450 <fwmail.NJCHATHAM>: Helo command rejected: Host not found; from=<info@fictionwise.com> to=<valid.address@jeffarnold.net> proto=ESMTP helo=<fwmail.NJCHATHAM>
    Feb 2 13:08:36 webmail postfix/smtpd[7819]: disconnect from 062.fictionwise.com[206.137.17.62]
    If, however, I do an nslookup, the host is (generally) found:

    [root@webmail ~]# nslookup 062.fictionwise.com
    Server: 192.168.2.29
    Address: 192.168.2.29#53

    Non-authoritative answer:
    Name: 062.fictionwise.com
    Address: 206.137.17.62
    and a reverse lookup also works:

    [root@webmail ~]# nslookup 206.137.17.62
    Server: 192.168.2.29
    Address: 192.168.2.29#53

    Non-authoritative answer:
    62.17.137.206.in-addr.arpa name = 062.fictionwise.com.
    What am I missing?
    Last edited by Jeffro77; 02-02-2006 at 12:30 PM.

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