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linux:mail:postfix [2018/08/01 13:48] niziak |
linux:mail:postfix [2023/02/13 12:49] (current) niziak ↷ Page moved from linux:postfix to linux:mail:postfix |
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| - | ====== 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 | ||