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Can you specify multiple mailhost's in the /etc/hosts file?

 
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Top Forums UNIX for Dummies Questions & Answers Can you specify multiple mailhost's in the /etc/hosts file?
# 1  
Old 01-31-2012
Can you specify multiple mailhost's in the /etc/hosts file?
Hello,

This question has been posted by another member previously, but no reply/answer was posted to that thread and it has been closed. Searches do not seem to turn up a straight answer as to whether or not this is possible.

So I ask the same question:
We recently had our SMTP server go down and critical messages from our servers were not delivered. I would like to know if it's possible to configure the etc/hosts file to designate a "primary" and "backup" mailhost (i.e. if the connection to the "primary" fails, then try the "backup".

Thanks in advance for any input or guidance.
# 2  
Old 02-02-2012
Nothing to do with /etc/hosts.. So answer is no...
It is more a DNS concern.
# 3  
Old 02-02-2012
We know nothing about your Operating System or mail software.

With sendmail you would normally configure the "DS" line in sendmail.cf to point to a named mail host (not an IP address). If you are using /etc/hosts not DNS, you can manually edit /etc/hosts to point to the standby server in case of emergency.
I don't know a way to configure a standby server with sendmail itself.
 
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