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tva77/main.cf

Created December 13, 2023 13:27
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how to control outgoing emails on postfix
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main.cf
# add this in your /etc/postfix/main.cf
default_destination_rate_delay = 1s
initial_destination_concurrency = 1
default_destination_concurrency_limit = 1
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_invalid_helo_hostname,reject_non_fqdn_helo_hostname,reject_unknown_helo_hostname
relayhost = [smtp.sendgrid.net]:587
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_tls_security_level = encrypt
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
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