Differences

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--- linux:postfix [2018/08/01 13:48] – niziak
+++ linux:postfix [2020/06/16 13:24] – niziak
@@ Line 1: / Line 1: @@
-====== relay only for one user ======
+====== Postfix ======
-<file |/etc/postfix/relay_by_sender>
-# Specify zero or more "type:name" lookup tables. Type is a service defined in master.cf
-cloudservice@example.org    [smtp.gmail.com]:587
-</file>
-cd /etc/postfix && postmap relay_by_sender
-<file | /etc/postfix/sasl_passwd>
-[smtp.gmail.com]:587  myrealsender@gmail.com:secret_password
-</file>
-<code bash>
-cd /etc/postfix && postmap sasl_passwd
-sudo chown root:root /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
-sudo chmod 0600 /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
-</code>
-<file | main.cf>
-...
-# A sender-dependent override for the global relayhost parameter setting
-sender_dependent_relayhost_maps = hash:/etc/postfix/relay_by_sender
-smtp_sender_dependent_authentication = yes
-smtp_sasl_auth_enable = yes
-smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
-smtp_sasl_security_options = noanonymous
-</file>
-<code bash>service postfix restart</code>
-Test email:
-<code bash>cat /etc/issue | mailx -r "cloudservice@example.org" -s "test relaya" "destination@email.org"</code>
-====== Issues ======
-(SASL authentication failed; cannot authenticate to server smtp.server.org[11.22.33.44]: no mechanism available)
-solution: smtp_sasl_security_options = noanonymous