Joseph L. Casale <[EMAIL PROTECTED]> wrote:

> I am now having trouble sending mail to a domain that I am also backup mx for.
> as port 25 outbound is blocked, I route with a relayhost, but for the domain I
> am backup mx for, I have the following in my transport file:
> example.com smtp:[mail.example.com]:24
> This was working for some time? I can send mail via 'telnet mail.example.com 
> 24' w/o
> issue. I am stumped to figure out what to look at to deduce what could cause 
> this?

Does the mail you successfully send via telnet contain the exact same
text/body as the one stuck in your queue?

> Maillog has this:
> 
> Nov 19 14:50:59 mail postfix/smtp[14229]: 7C38068134:
> to=<[EMAIL PROTECTED]>, relay=aaa.bbb.ccc.ddd[aaa.bbb.ccc.ddd]:24,
> delay=173829, delays=173525/0/0.06/304, dsn=4.4.2, status=deferred
> (lost connection with aaa.bbb.ccc.ddd[aaa.bbb.ccc.ddd] while sending
> message body)
> 
> Where else should I look, and does anyone see anything technically
> wrong so far?

You have not given much information about your setup as requested by the
DEBUG_README, so one can only speculate.  Do you know what MTA the relay
is running?  Have you recorded the SMTP conversation with something like
tcpdump to see what happens right before the connection is lost?

-- 
Sahil Tandon <[EMAIL PROTECTED]>

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