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bundles/postfix: lessen smtpd security restrictions

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Franzi 2022-12-20 08:55:44 +01:00
parent caa54051ff
commit 90823b7984
Signed by: kunsi
GPG key ID: 12E3D2136B818350
1 changed files with 9 additions and 5 deletions
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14
bundles/postfix/files/main.cf
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@ -48,13 +48,17 @@ smtpd_client_restrictions = permit_mynetworks permit_sasl_authenticated
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks reject_invalid_helo_hostname
smtpd_data_restrictions = reject_unauth_pipelining
# generated using mozilla ssl generator, using "old" configuration.
# we need this to support CentOS 7 systems, sadly ...
# https://ssl-config.mozilla.org/#server=postfix&version=3.5.13&config=old&openssl=1.1.1k&guideline=5.6
smtpd_tls_security_level = may
smtpd_tls_mandatory_ciphers = high
smtpd_tls_exclude_ciphers = aNULL,LOW,EXP,MEDIUM,ADH,AECDH,MD5,DSS,ECDSA,CAMELLIA128,3DES,CAMELLIA256,RSA+AES,eNULL
smtpd_tls_mandatory_protocols = !SSLv2,!SSLv3,!TLSv1,!TLSv1.1
smtpd_tls_protocols = !SSLv2,!SSLv3,!TLSv1,!TLSv1.1
smtpd_tls_ciphers = medium
smtpd_tls_auth_only = yes
smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
smtpd_tls_protocols = !SSLv2, !SSLv3
smtpd_tls_mandatory_ciphers = medium
tls_medium_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:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA
tls_preempt_cipherlist = yes
</%text>
relay_domains = $mydestination, pgsql:/etc/postfix/pgsql/relay_domains.cf