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How to let postfix to allow some ip to relay email

To allow postfix accept email relaying from a specific ip adress, we can edit /etc/postfix/main.cf:

mynetworks = 127.0.0.0/8

to

mynetworks = 127.0.0.0/8, a.b.c.d/e

where a.b.c.d/e is the new group of ip address, or you can simply add one ip address in it. Restart postfix and now postfix will consider a.b.c.d/e as trusted ip and allow email from this ip address relaying email using this postfix mail server.

Submitted by water on Thu, 2009-05-21 09:08
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