How to Configure Sendmail not to Look up MX records.
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A default sendmail configuration will do DNS queries for MX records, it does this even when its setup to use a Mail Relay Server for sending mail out. This will cause mail to fail if its not able to lookup the MX record.
Resolving the problem
Setting up sendmail not to query DNS for MX records when using a DS (Smart Relay) consists of using "[ ]" brackets around the hostname Mail Relay Server configured in the /etc/mail/sendmail.cf.
Search for DS
Save the configuration file...
refresh -s sendmail
|Operating Systems||AIX family|
More support for:
Software version: 5.2, 5.3, 6.1
Operating system(s): AIX
Reference #: T1011217
Modified date: 05 December 2008
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