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| author | Quentin Dufour <quentin@deuxfleurs.fr> | 2023-12-25 14:00:36 +0100 |
|---|---|---|
| committer | Quentin Dufour <quentin@deuxfleurs.fr> | 2023-12-25 14:00:36 +0100 |
| commit | ac42e95f1ab8fbc2510e67746cc183b73e583479 (patch) | |
| tree | 6185606fcadfd8e77e9c87489b592c1ce82e3c4b /cluster/prod/app/email/config | |
| parent | 2472a6b61a587a3d92a731875ccf0b257c24189a (diff) | |
| download | nixcfg-ac42e95f1ab8fbc2510e67746cc183b73e583479.tar.gz nixcfg-ac42e95f1ab8fbc2510e67746cc183b73e583479.zip | |
update smtp server security conf
Diffstat (limited to 'cluster/prod/app/email/config')
| -rw-r--r-- | cluster/prod/app/email/config/postfix/main.cf | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/cluster/prod/app/email/config/postfix/main.cf b/cluster/prod/app/email/config/postfix/main.cf index a83e5ec..5593716 100644 --- a/cluster/prod/app/email/config/postfix/main.cf +++ b/cluster/prod/app/email/config/postfix/main.cf @@ -77,7 +77,11 @@ smtpd_relay_restrictions = permit_mynetworks reject_unauth_destination -smtpd_data_restrictions = reject_unauth_pipelining +# Disable SMTP smuggling attacks +# https://www.postfix.org/smtp-smuggling.html +smtpd_forbid_unauth_pipelining = yes +smtpd_discard_ehlo_keywords = chunking +smtpd_forbid_bare_newline = yes smtpd_client_connection_rate_limit = 2 |