Differences

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--- gmail_as_a_relay_on_linux [2015/11/04 19:10] – juckins
+++ gmail_as_a_relay_on_linux [2020/09/30 16:07] – juckins
@@ Line 1: / Line 1: @@
-Test platforms: \\
+===== Using Gmail as a Relay on CentOS Linux =====
-  * CentOS7 7.1.1503 (Core)
-  * CentOS6 6.7
+Required packages if CentOS6 6.7: \\
+  * postfix (tested version 2:2.6.6-6.el6_5)
+  * ca-certificates.noarch (tested version 2015.2.4-65.0.1.el6_6)
+Required packages if CentOS7 7.2.1511: \\
+  * postfix (tested version 2.10.1-6.el7 )
+  * ca-certificates.noarch (tested version 2015.2.4-70.0.el7_1)
+  * cyrus-sasl-plain (tested version 2015.2.6-70.1.el7_2)
+    * Got hint that this is needed from [[http://www.postfix.org/SASL_README.html#client_sasl_policy|Postfix config]]
+  * cyrus-sasl-lib (tested version 2.1.26-20.el7_2)
+Other CentOS 7 Notes:
+  * Best to use this version of mutt: mutt-1.6.2-1.fc22.x86_64.rpm
+    * Otherwise, you may get errors like: Bad IDN in "from": 'tidewater.�'
+  * /etc/resolv.conf may need the 'search' pattern, ex: search attlocal.net
+    * As root, run 'nmtui' to set network parameters
+  * If trouble sending after install, may need to consult [[http://unix.stackexchange.com/questions/109473/after-updating-ssmtp-to-version-2-61-i-cannot-send-mail-via-gmail|this link]]
 Directions [[http://mhawthorne.net/posts/postfix-configuring-gmail-as-relay.html|based on this page by Matthew Hawthorne]]: \\
-. Make sure /etc/ssmtp/ssmtp.conf is the distro version (no changes)
+. If installed, make sure /etc/ssmtp/ssmtp.conf is the distro version (no changes, is not needed on CentOS 7 and not existent on CentOS8)
 . Make a backup copy of /etc/postfix/main.cf
@@ Line 15: / Line 31: @@
 relayhost = [smtp.gmail.com]:587
-#  use tls
+# use tls
 smtp_use_tls=yes
@@ Line 58: / Line 74: @@
 . Restart postfix: \\
+<code>
+# /bin/systemctl restart postfix.service
+</code>
+or
 <code>
 # /etc/init.d/postfix reload
@@ Line 72: / Line 92: @@
 #set from = username@HOSTNAME_OR_ALIAS.domain
 #set realname="juckins@lightning"
-set realname=$USER@$HOSTNAME
+set realname="$USER@$HOSTNAME" (works in CENTOS7, mutt-1.5.21-26.el7.x86_64 but *not* via cron sending)
 </code>
@@ Line 79: / Line 100: @@
 mutt -s "Test1" [email protected] </dev/null
 </code>
-or
+or to send a message without using a separate file:
 <code>
 echo 'It works' | mailx -s 'Test message' [email protected]