Virtual Domain

Configure for Virtulal Domain to send an email with another domain name different from original domain. This example set config as, present domain name ⇒ server.world new domain name ⇒ virtual.host and userA has an email address cent@mail.server.world now
and Add userB newly and Give him an email address cent@mail.virtual.host

[1]     Config for Virtula Domain

[root@mail ~]#vi /etc/postfix/main.cf
# add at the bottom
virtual_alias_domains = virtual.host
virtual_alias_maps = hash:/etc/postfix/virtual
[root@mail ~]#vi /etc/postfix/virtual
# add at the head
[root@mail ~]#postmap /etc/postfix/virtual
[root@mail ~]#/etc/rc.d/init.d/postfix reload
Reloading postfix:[ OK ]

[2]     Configure on client for new account and verify sending emails.

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