From 57e40efc54c230566fd5f6bd10d25692709909b7 Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Thu, 2 Jun 2016 22:24:17 +0200
Subject: postfix: rotate the sender address for verify probes.
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In order to avoid ‘double-bounce@’ ending up on spammer mailing lists.
See http://www.postfix.org/ADDRESS_VERIFICATION_README.html .
---
 roles/out/templates/etc/postfix/main.cf.j2 | 1 +
 1 file changed, 1 insertion(+)

(limited to 'roles/out')

diff --git a/roles/out/templates/etc/postfix/main.cf.j2 b/roles/out/templates/etc/postfix/main.cf.j2
index 1e1fe74..ddd46d5 100644
--- a/roles/out/templates/etc/postfix/main.cf.j2
+++ b/roles/out/templates/etc/postfix/main.cf.j2
@@ -73,6 +73,7 @@ smtpd_delay_reject      = yes
 disable_vrfy_command    = yes
 
 address_verify_sender            = $double_bounce_sender@$mydomain
+address_verify_sender_ttl        = 24h
 unverified_recipient_defer_code  = 250
 unverified_recipient_reject_code = 550
 
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