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

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Old 07-21-2011
Question Can you have multiple mailhost's in the /etc/hosts file?

We recently had an smtp server go down and didn't have a backup. Now that the backup server is up and running, I'd like to set up sendmail on our Solaris 10 servers to failover to the backup mail (smtp) server if the primary refuses connections.

I've googled "mailhost" and haven't found anything that suggests you can have more than one mailhost entry, but I figure that its worth a shot to ask.

Thanks in advance!
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SENDMAILCONFIG(8)					      System Manager's Manual						 SENDMAILCONFIG(8)

sendmailconfig - configure sendmail for Debian systems SYNOPSIS
sendmailconfig [--no-reload] DESCRIPTION
sendmailconfig is used to simplify the configuration of sendmail(8) for use on Debian systems. In the simplest case, you may run this program to (re)configure sendmail for your Debian system at any time. It will modify the file /etc/mail/ in order to create a working sendmail configuration which will be written to the file /etc/mail/ For advanced configurations, you can modify the file before generating Future invokations of sendmailconfig will preserve these changes provided they are made at the end of the file. Normally sendmailconfig will ask if you want to reload sendmail after making changes to its configuration. The --no-reload option will avoid this question. FILES
/etc/mail/ sendmail m4 input to generate /etc/mail/ actual sendmail configuration file /etc/mail/ names for which we will accept mail in the standard configuration /etc/mail/sendmail.ct names of trusted users in the standard configuration SEE ALSO
sendmail(8) AUTHOR
Robert Leslie <> 21-Jan-1997 SENDMAILCONFIG(8)