[rt-users] Sendmail - Sender address rejected: Domain not found

[Johan Sjöberg]

Hi.

The address you are sending from is deferred in the recipient's mail server, because the domain does not exist. Do you have a MX record for the sender domain?

/Johan

From: rt-users-bounces at lists.bestpractical.com [mailto:rt-users-bounces at lists.bestpractical.com] On Behalf Of Yaj Tap
Sent: den 13 juni 2011 22:12
To: rt-users at lists.bestpractical.com
Subject: [rt-users] Sendmail - Sender address rejected: Domain not found

Hi All,

We are encountering a issue with sendmail in RT. Following is the maillog from the /var/log


Sendmail [102342]: psfafEADaAd: to=<mary at cch.ca, delay=02:00:29, xdelay=00:00:02, mailer=esmtp, pri=79782, relay=relay-ex2.cch.ca. [IP Address], dsn=4.1.8, stat-Defferred: 450 4.1.8 <apache at rt.domain.com<mailto:mary at cch.ca,%20delay=02:00:29,%20xdelay=00:00:02,%20mailer=esmtp,%20pri=79782,%20relay=relay-ex2.cch.ca.%20[IP%20Address],%20dsn=4.1.8,%20stat-Defferred:%20450%204.1.8%20%3capache at rt.domain.com>>: Sender address reject: Domain not found

We are suspecting it is a issue of sending emails to subdomain email addresses. Meaning emails to abc at xyz.com<mailto:abc at xyz.com> will go out and but sometimes emails with abc at lmn.xyz.com<mailto:abc at lmn.xyz.com> are not going out. We could be wrong...problem could be somewhere else.

Any help will be really appreciated.

Thank you.





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