After replacing postfix with exim (defaults) now the from address on mail sent by an application (sympa) is being changed xyz@goodstuff.whatever to xyz@hostname
Why? no rewrite rules seem to be declared
Please help
Regards
If your system is using a simple /etc/exim/exim.conf, add this simple line:
primary_hostname = goodstuff.whatever
Restart exim after you change the config file.
I don't know if CentOS EPEL rpms (assuming that's what you used) look inside any file to set that variable or if woudl have to be manually added by you.