From 2695fe4ae82025a560b7453751077f02dcf42ea7 Mon Sep 17 00:00:00 2001
From: Quentin Dufour <quentin@deuxfleurs.fr>
Date: Wed, 7 Sep 2022 08:11:44 +0200
Subject: [PATCH] Force IPv4 when sending to gmail

Because Free does not provide rDNS on IPv6
so GMail complains that it does not find a PTR record
for our IPv6 address
---
 .../prod/app/email/config/postfix/master.cf   |  13 ++++++++-----
 .../prod/app/email/config/postfix/transport   |   1 +
 .../app/email/config/postfix/transport.db     | Bin 12288 -> 12288 bytes
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/cluster/prod/app/email/config/postfix/master.cf b/cluster/prod/app/email/config/postfix/master.cf
index 53bc601..d06243e 100644
--- a/cluster/prod/app/email/config/postfix/master.cf
+++ b/cluster/prod/app/email/config/postfix/master.cf
@@ -19,11 +19,6 @@ smtps      inet  n       -       n       -       -       smtpd
     -o smtpd_sasl_auth_enable=yes
     -o smtpd_client_restrictions=permit_sasl_authenticated,reject
     -o milter_macro_daemon_name=ORIGINATING
-slow unix       -       -      n        -       5       smtp
-  -o syslog_name=postfix-slow
-  -o smtp_destination_concurrency_limit=3
-  -o slow_destination_rate_delay=1
-
 
 #628       inet  n       -       -       -       -       qmqpd
 pickup     fifo  n       -       n       60      1       pickup
@@ -42,6 +37,14 @@ proxywrite unix -       -       n       -       1       proxymap
 # When relaying mail as backup MX, disable fallback_relay to avoid MX loops
 smtp       unix  -       -       n       -       -       smtp
 #       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
+
+smtp-ipv4  unix  -       -       n       -       -       smtp
+    -o syslog_name=postfix-ipv4
+    -o inet_protocols=ipv4 
+slow  unix       -       -       n       -       5       smtp
+    -o syslog_name=postfix-slow
+    -o smtp_destination_concurrency_limit=3
+    -o slow_destination_rate_delay=1
 relay      unix  -       -       n       -       -       smtp
     -o smtp_fallback_relay=
 showq      unix  n       -       n       -       -       showq
diff --git a/cluster/prod/app/email/config/postfix/transport b/cluster/prod/app/email/config/postfix/transport
index 68f62c5..abc1b9a 100644
--- a/cluster/prod/app/email/config/postfix/transport
+++ b/cluster/prod/app/email/config/postfix/transport
@@ -3,3 +3,4 @@
 #orange.com slow:
 #orange.fr slow:
 #smtp.orange.fr slow:
+gmail.com smtp-ipv4: 
diff --git a/cluster/prod/app/email/config/postfix/transport.db b/cluster/prod/app/email/config/postfix/transport.db
index 487f39413d725ed89c4afc36ee269d4eb50c3954..d0870e9d9d2c04c567b34d46304b64c25ec08db7 100644
GIT binary patch
delta 105
zcmZojXh@h~qAJRGfsyGS14GJAM=@ar2w((KAPfVH8zXnib1^Zz<Y(ah%KwsoqMR5X
is=kd*%lX9_i*ri~bTbReOsp6f({mFubM%t)a~S}DOc*o(

delta 67
zcmZojXh@h~!l%L5!oc{Kfnn0}TgAJ=HajUS=ik^MEijoyL4b{cfkA+QccPROHdPZF
F!~w~t6zl*1