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t-chab/simple-mailer-howto.md

Last active October 22, 2020 21:45
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Simple smtp setup
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simple-mailer-howto.md

How to quickly setup an forwarding SMTP with Postfix

Requirements

Install Postfix

Configuration

Without auth

postconf -e relayhost=target.mailserver
postconf -e myorigin=$HOSTNAME.mydomain

With auth and TLS :

postconf -e relayhost=[target.mailserver]:587
postconf -e myorigin=$HOSTNAME.mydomain
postconf -e smtp_tls_security_level=may
postconf -e smtp_use_tls=yes
postconf -e smtp_sasl_auth_enable=yes
postconf -e smtp_sasl_password_maps=texthash:/etc/postfix/sasl_password
postconf -e smtp_sasl_security_options=
echo "[target.mailserver]:587 username:password" >> /etc/postfix/sasl_password

Sources :

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