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--- tutorial:mail:postfixrelay [2013-08-18 00:24]
root created
+++ tutorial:mail:postfixrelay [2018-06-03 14:10] (current)
@@ Line 1: / Line 1: @@
 {{tag>tutorial mail}}
-====== Configure postfix as a backup for Exchange ======
+====== Let postfix only accept mails for addresses in Exchange ======
-**Problem:**
+===== Problem =====
   * I use postfix as a backup for my Exchange. I want postfix to only accept mail for recipients which exist in Exchange.
-**Requirements:**
+===== Requirements =====
   * I assume you followed my first tutorial [[tutorial:mail:postfixredir|here]]
   * Existing postfix installation (mine is on debian)
@@ Line 13: / Line 13: @@
 ----
-**Step ~~#~~**
+===== Step 1 =====
   * Create the following PowerShell script on your Exchange server:
   * <code>
@@ Line 25: / Line 28: @@
 {[string]::Format("{0}`tOK", $Address.AddressString)}
 </code>
-  * Run the script and save the output to a file like this: <code>./script.ps > output.txt</code>
+  * Run the script and save the output to a file like this: ''%%./script.ps > output.txt%%''
 ----
-**Step ~~#~~**
+===== Step 2 =====
   * Connect to yout server running postfix
   * Upload the scriptoutput to /etc/postfix/relay_recipients
@@ Line 38: / Line 41: @@
 </code>
   * Reload or restart postfix
+----
+===== Step 3+ =====
+  * If your addresses change (added new or removed some) you have to repeat step 1 and 2