Solaris 11.2 Add other SMTP server as the relay server

Edit the /etc/mail/cf/cf/sendmail.mc. But the first thing a good Solaris admin will do is to make a copy of the file and call it .mc, where hostname is the output of the command  /usr/bin/hostname.

# cd /etc/mail/cf/cf # cp -p sendmail.mc `hostname`.mc

Now, edit .mc and add this line.

define(`SMART_HOST', `smtp$?m.$m$.')

 Replace the string ‘smtp’ with the name of the server that relays e-mails; i.e. the smart relay host, in your organisation.

Save the file and compile it.

# /usr/ccs/bin/make `hostname`.cf test ! -f solaris-srv.cf || /usr/bin/mv solaris-srv.cf solaris-srv.cf.prev /usr/ccs/bin/m4 ../m4/cf.m4 solaris-srv.mc > solaris-srv.cf # ls -l `hostname`.cf -rw-r--r--   1 root     root       40283 Oct 31 11:14 solaris-srv.cf

Copy the .cf file over /etc/mail/sendmail.cf and restart the sendmail daemon.

# cp solaris-srv.cf /etc/mail/sendmail.cf # svcadm restart svc:/network/smtp:sendmail # svcs /network/smtp:sendmail STATE          STIME    FMRI online         11:30:20 svc:/network/smtp:sendmail