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--- tutorial:mail:postfixredir [2013-08-18 00:45]
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+++ tutorial:mail:postfixredir [2018-06-03 14:10]
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-{{tag>tutorial mail}}
-====== Configure postfix as a backup for Exchange ======
-===== Problem =====
-  * I want to use postfix on a virtual server as a backup incase my Exchange is down. Postfix should accept every mail and deliver it to the Exchange server instantly or wait until the Exchange server is available.
-===== Requirements =====
-  * Existing postfix installation
-  * Existing Exchange installation
-----
-===== Step 1 =====
-  * Login to your virtual server via ssh.
-----
-===== Step 2 =====
-  * Create and open the file /etc/postfix/transport
-  * Insert ''%%domain.com smtp:exchangehost.name%%''
-  * Run ''%%postmap /etc/postfix/transport%%''
-----
-===== Step 3 =====
-  * Edit /etc/postfix/main.cf
-  * Insert ''%%relay_domains = domain.com%%''
-  * Run ''%%/etc/init.d/postfix reload%%''