sendmail in opensolaris

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...by default is accepting connections only from localhost.
Not very useful if you want to have a functional mail server.
To allow connections from everywhere svccfg is the way to do it:

#svccfg -s sendmail setprop config/local_only=false


Don't forget to : #svcadm refresh sendmail and restart the sendmail server: #svcadm restart sendmail


To check if it is ok, run:

#svcprop sendmail
[...]
config/local_only boolean false
[...]

and telnet your_host 25 from outside.


More info about svcprop and svccfg.

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