Weird SMTP timeouts

[John Abreau]

I'm getting reports of mail failing to certain addresses, and I found
that my mail server is getting a timeout trying to connect to the
recipient's smtp server. But when I telnet to it, it connects just fine.


> % sudo sendmail -v -q
> Running /var/spool/mqueue/k58KLgHx006896 (sequence 10 of 11)
> <lmurray at HelmsBriscoe.com>... Deferred: Connection timed out with
> smtp.helmsbriscoe.com.


> % telnet smtp.helmsbriscoe.com 25
> Trying 64.16.17.140...
> Connected to smtp.helmsbriscoe.com (64.16.17.140).
> Escape character is '^]'.
> 220 hbweb01.helmsbriscoe.com ESMTP SonicWALL (4.6.0.7527)


If telnet to port 25 works, why would sendmail be unable to connect to
port 25?  This makes no sense to me.


-- 
John Abreau / Executive Director, Boston Linux & Unix
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