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Require TLSv1.2 for submission

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This commit is contained in:
Julian Rother 2025-02-09 03:12:18 +01:00
parent b1ce5b3e84
commit 08ddca07c8
Signed by: julian
GPG key ID: C19B924C0CD13341
1 changed files with 3 additions and 0 deletions
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templates/postfix/master.cf.j2
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@ -19,6 +19,9 @@ submission inet n - y - - smtpd
-o smtpd_tls_security_level=encrypt
-o smtpd_tls_cert_file=$mua_tls_cert_file
-o smtpd_tls_key_file=$mua_tls_key_file
-o smtpd_tls_mandatory_protocols=>=TLSv1.2
-o smtpd_tls_mandatory_ciphers=high
-o tls_high_cipherlist=ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
-o syslog_name=postfix/submission
-o smtpd_sasl_auth_enable=yes
-o smtpd_reject_unlisted_recipient=no