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| — | postfix_config_for_outgoing_smarthost [26.12.2017 11:54] – created Pascal Suter | ||
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| + | ====== postfix config for outgoing smarthost with TLS authentication ====== | ||
| + | this is a short how-to, to get your postfix mailserver to send outgoing mail via a smarthost that requires TLS authenticatin: | ||
| + | |||
| + | create a password file with the following contents: | ||
| + | echo " | ||
| + | chmod 600 / | ||
| + | postmap / | ||
| + | edit main.cf | ||
| + | nano / | ||
| + | and add / modify these lines: | ||
| + | < | ||
| + | relayhost = mail.w3design.ch: | ||
| + | smtp_use_tls=yes | ||
| + | smtp_sasl_auth_enable = yes | ||
| + | smtp_sasl_password_maps = hash:/ | ||
| + | smtp_sasl_security_options = noanonymous | ||
| + | smtp_tls_security_level = encrypt | ||
| + | </ | ||
| + | also make sure you're not creating an open realy server for everybody to use. for example limit your accetpable mail networks to localhost only is a good starting point (in main.cf as well): | ||
| + | mynetworks = 127.0.0.0/8 [:: | ||
| + | now check your neew config and reload it: | ||
| + | postfix check | ||
| + | postfix reload | ||
| + | montior your mail logs and send a test message to see what happens: | ||
| + | tail -f / | ||
| + | in another terminal: | ||
| + | echo "this is a test " | mail mail@psuter.ch -s test | ||