install.fairie/home/dot_config/postfix/main.cf

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### INSTALL DOCTOR MANAGED ### START
# @file SendGrid Postfix configuration
# @brief Configures Postfix to use SendGrid as a relay host
# @description
# This configuration file is appended to `/etc/postfix/main.cf` by one of the scripts. It configures SendGrid
# as a relay host that Postfix can use. More details can be found in the
# [SendGrid documentation on integrating Postfix](https://docs.sendgrid.com/for-developers/sending-email/postfix).
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_sasl_tls_security_options = noanonymous
smtp_tls_security_level = encrypt
header_size_limit = 4096000
relayhost = [smtp.sendgrid.net]:587
### INSTALL DOCTOR MANAGED ### END