Sendmail domain masquerade problem
by Alpha01
Recently, I wanted to change my host outgoing domain email address. Since I’ve been getting into the habit of using bare minimal installs, it turns out that sendmail by default does not include sendmail-cf package needed by the m4 utility to generate a sendmail .cf configuration file.
Error
[root@bashninja mail]# m4 < sendmail.mc > sendmail.cf
m4:stdin:10: cannot open `/usr/share/sendmail-cf/m4/cf.m4': No such file or directory
Fix
[root@bashninja mail]# yum install sendmail-cf
sendmail