Setting up Mail Forwarding in Postfix

To setup mail forward in postfix,

Edit postfix config file

vi /etc/postfix/main.cf

Add

virtual_alias_domains = /etc/postfix/virtual_alias_domains
virtual_alias_maps = hash:/etc/postfix/virtual_alias_maps

Create file /etc/postfix/virtual_alias_domains

vi /etc/postfix/virtual_alias_domains

Add your domains on this file. 1 Per line.

Example

[root@s125359 ~]# cat /etc/postfix/virtual_alias_domains
webhostingneeds.com
netfreehost.com
[root@s125359 ~]# 

Here i have 2 domains added, postfix will service as incoming email server for these 2 domains.

Now create /etc/postfix/virtual_alias_maps, this file will list all email accounts you need and where the email needed to be forwarded to.

vi /etc/postfix/virtual_alias_maps

Add

[email protected] [email protected] 
[email protected] [email protected]  

here email coming to [email protected] and [email protected] get forwarded to [email protected]

If you need catch all email account, just use

@yourdomain.com [email protected]

If you want email forwarded to more than one recipient, add them one after other like

[email protected] [email protected] [email protected]

Now run

postmap /etc/postfix/virtual_alias_maps

Restart postfix

systemctl restart postfix

You need to set MX record of your domain to point to server running the postfix mail server to receive mails.