Differences

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--- gmail_as_a_relay_on_linux [2015/11/04 18:48] – juckins
+++ gmail_as_a_relay_on_linux [2023/06/23 10:20] – juckins
@@ Line 1: / Line 1: @@
-Directions [[http://mhawthorne.net/posts/postfix-configuring-gmail-as-relay.html|based on this page by Matthew Hawthorne]] worked: \\
+===== Using Gmail as a Relay on CentOS Linux =====
-. Make sure /etc/ssmtp/ssmtp.conf is the distro version (no changes)
+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]]
+CentOS 8 Notes:
+  * (Nothing special noted)
+RockyLinux 9 Notes:
+  * ?
+Directions [[http://mhawthorne.net/posts/postfix-configuring-gmail-as-relay.html|based on this page by Matthew Hawthorne]]: \\
+. If it exists, make sure /etc/ssmtp/ssmtp.conf is the distro version with no changes
 . Make a backup copy of /etc/postfix/main.cf
@@ Line 11: / Line 33: @@
 relayhost = [smtp.gmail.com]:587
-#  use tls
+# use tls
 smtp_use_tls=yes
@@ Line 20: / Line 42: @@
 smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
+# NOTE: This section *should* be configured properly in CentOS8 and RockyLinux9 by default
 # list of CAs to trust when verifying server certificate
 #smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
@@ Line 54: / Line 77: @@
 . Restart postfix: \\
+<code>
+# /bin/systemctl restart postfix.service
+</code>
+or
 <code>
 # /etc/init.d/postfix reload
@@ Line 62: / Line 89: @@
 </code>
-. Edit ~/.muttrc for each user as appropriate: \\
+. Add these lines to the global /etc/Muttrc.local (easier than adding it to each user's $HOME/.muttrc): \\
 <code>
-#set from = $USER@$HOSTNAME
+set from = "`whoami`@`hostname`"
-#set from = username@HOSTNAME_OR_ALIAS.domain
+set realname = "`whoami`@`hostname`"
-#set realname="juckins@lightning"
-set realname=$USER@$HOSTNAME
 </code>
@@ Line 75: / Line 100: @@
 mutt -s "Test1" [email protected] </dev/null
 </code>
-or
+or to send a message without using a separate file but note mailx is probably not looking at .muttrc:
 <code>
 echo 'It works' | mailx -s 'Test message' [email protected]
+</code>
+or
+<code>
+mailx -a test.txt -s "test subject" user@domain < /dev/null
 </code>