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Date: Mon, 24 Mar 2014 12:22:30 -0700
From: Claus Assmann <freebsd+current@esmtp.org>
To: freebsd-current@FreeBSD.org
Subject: Re: sendmail Broken Pipe Error
Message-ID: <20140324192230.GA3916@x2.esmtp.org>
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On Mon, Mar 24, 2014, Willy Offermans wrote:

> Mar 24 14:16:01 MyServer sm-mta[11725]: s2ODCWT4011717: SYSERR(root): timeout writing message to MyProvider.com: Broken pipe
> Mar 24 14:16:01 MyServer sm-mta[11725]: s2ODCWT4011717: to=<SomeAddress@example.com>, delay=00:03:29, xdelay=00:03:26, mailer=relay, pri=1284849, relay=MyProvider.com [XXX.XXX.XXX.XXX], dsn=4.0.0, stat=Deferred

> Since there is a timeout error, I like to know what sendmail is writing to
> MyProvider.com

The mail message (DATA) -- as the log entry states.

> Is there a way to debug sendmail to disclose the message written to
> MyProvider.com and the response from MyProvider.com. I'm pretty sure that 

There's no response...
check out s2ODCWT4011717 in your mail queue.