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postfix: do not lookup client hostnames

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link2xt
2024-07-13 02:39:59 +00:00
committed by holger krekel
parent 1eca8aa143
commit 4ebc4f3069
1 changed files with 4 additions and 0 deletions
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cmdeploy/src/cmdeploy/postfix/main.cf.j2
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@@ -77,3 +77,7 @@ mua_helo_restrictions = permit_mynetworks, reject_invalid_helo_hostname, reject_
# 1:1 map MAIL FROM to SASL login name. # 1:1 map MAIL FROM to SASL login name.
smtpd_sender_login_maps = regexp:/etc/postfix/login_map smtpd_sender_login_maps = regexp:/etc/postfix/login_map
# Do not lookup SMTP client hostnames to reduce delays
# and avoid unnecessary DNS requests.
smtpd_peername_lookup = no