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Mail fails to be sent via sendmail from a server with Relay Denied despite a relay host server being configured in sendmail (Doc ID 2310104.1)

Last updated on MAY 10, 2023

Applies to:

Linux OS - Version Oracle Linux 6.2 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64

Symptoms

Despite sendmail being updated with the correct relay host, sendmail still fails to send mails, with the "Relay access denied" error seen in the system's logs as follows:

Aug 31 11:01:53 localhost sendmail[359002]: v7VCs0Fq007813: to=<mail@test.com>, ctladdr=<root@localhost> (0/0), delay=02:07:53, xdelay=00:00:04
, mailer=relay, pri=510530, relay=smtp.relay.host. [10.x.x.x], dsn=4.7.1, stat=Deferred: 454 4.7.1 <mail@test.com>: Relay access denied

Cause

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In this Document
Symptoms
Cause
Solution
References


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