Differences

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--- lwc:linux:postfix [2021/09/25 10:17] – created John Harrison
+++ lwc:linux:postfix [2021/11/11 05:59] (current) – John Harrison
@@ Line 11: / Line 11: @@
 sudo postconf -e 'smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt'
 sudo cp /etc/resolv.conf /var/spool/postfix/etc/resolv.conf # getting hostname unresolved without this. A bug in 14.04 that remains?
-sed -e '0/^smtp/s/^/#/' -i /etc/postfix/master.cf # shut down smtp incoming
+sudo sh -c 'echo inet_interfaces = loopback-only >> /etc/postfix/main.cf' # smtp accepted but only internally
-sudo sh -c 'echo inet_interfaces = loopback-only >> /etc/postfix/main.cf' # smtp accepted only internally (redundant?)
 sudo postfix stop; sudo postfix start; sudo postfix reload
 </code>
@@ Line 25: / Line 24: @@
 sudo postfix stop; sudo postfix start; sudo postfix reload
 </code>
+=== Remap root@localhost to another to address ===
+  * add ''root:	       <EMAILADDR>'' to ''/etc/aliases''
+  * ''sudo newaliases''
 === test ===
+Test with sendmail:
 <code>
 sendmail -f sender@example.com recipient@example.com # -f allows you to specify from and is not required
@@ Line 33: / Line 36: @@
 .
 </code>
+or [[https://www.thomas-krenn.com/en/wiki/Test_TCP_Port_25_(smtp)_access_with_telnet|test with telnet]]
 === Tips ===
   * postfix should be set up with no configuration. When you do this, there are instructions given at the end to copy some sort of sample configuration.
@@ Line 38: / Line 42: @@
   * to reload the settings: ''sudo postfix stop; sudo postfix start; sudo postfix reload''
   * when testing ''tail -f /var/log/mail.log'' is your friend
+  * view queued mail: ''postqueue -p''
+  * flush queued mail: ''postqueue -f''
+  * purge all queued mail: ''sudo postsuper -d ALL''
 ==== Optional ====
   * get current hostname: ''hostname''
   * set hostname with ''hostnamectl set-hostname <HOSTNAME>''