Trying to understand Sendmail's errors

Installing, Configuring, Troubleshooting server daemons such as Web and Mail
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rtcary
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Joined: 2005/10/13 18:40:55
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Trying to understand Sendmail's errors

Post by rtcary » 2013/07/15 18:04:43

For many years I have avoided getting involved with Sendmail on my simple Centos 5 server that is used mainly testing php code (I use a php mail library). However I am now testing a CMS program (Concrete5) that uses the Apache mail service, and on my server the default is Sendmail.

The /var/log/maillog file contains these lines that are way over my head:

[quote]
Jul 15 10:39:19 localhost sendmail[4666]: r6FHdJPm004666: from=apache, size=620, class=0, nrcpts=1, msgid=201307151739.r6FHdJPm004666@localhost.localdomain>, relay=apache@localhost
Jul 15 10:39:20 localhost sendmail[4667]: r6FHdJ2v004667: from=, size=819, class=0, nrcpts=1, msgid=, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]
Jul 15 10:39:20 localhost sendmail[4666]: r6FHdJPm004666: to=answer@aristesoftware.com, ctladdr=apache (48/48), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=30620, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (r6FHdJ2v004667 Message accepted for delivery)
Jul 15 10:39:22 localhost sendmail[4669]: r6FHdJ2v004667: to=, ctladdr= (48/48), delay=00:00:02, xdelay=00:00:02, mailer=esmtp, pri=120819, relay=mailin-01.mx.sonic.net. [69.12.221.235], dsn=5.0.0, stat=Service unavailable
Jul 15 10:39:22 localhost sendmail[4669]: r6FHdJ2v004667: r6FHdM2v004669: DSN: Service unavailable
Jul 15 10:39:23 localhost sendmail[4669]: r6FHdM2v004669: to=root, delay=00:00:01, xdelay=00:00:00, mailer=local, pri=32075, dsn=2.0.0, stat=Sent
[/quote]

Is this something I can fix/configure with my limited knowledge?

Todd

gulikoza
Posts: 188
Joined: 2007/05/06 20:15:23

Re: Trying to understand Sendmail's errors

Post by gulikoza » 2013/08/16 05:24:42

The destination server is rejecting your e-mail (stat=Service unavailable). It might be a problem at the destination server but if you know it's working it's probably rejecting your mail because you sent it with @localhost.localdomain sender.

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