From 548e2e0054c0a17bef97e7a57ac0a85c9fcb2e28 Mon Sep 17 00:00:00 2001
From: Henry van Megen <h.vanmegen@gmail.com>
Date: Wed, 6 Nov 2019 15:28:17 +0100
Subject: [PATCH] sendmail-auth.conf: filter updated for longer mail IDs (up to
 20, see gh-2562)

---
 config/filter.d/sendmail-auth.conf | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/config/filter.d/sendmail-auth.conf b/config/filter.d/sendmail-auth.conf
index a370eea2..752621f7 100644
--- a/config/filter.d/sendmail-auth.conf
+++ b/config/filter.d/sendmail-auth.conf
@@ -9,7 +9,8 @@ before = common.conf
 
 _daemon = (?:sendmail|sm-(?:mta|acceptingconnections))
 
-failregex = ^%(__prefix_line)s\w{14}: (\S+ )?\[(?:IPv6:<IP6>|<IP4>)\]( \(may be forged\))?: possible SMTP attack: command=AUTH, count=\d+$
+# "w{14,20}" will give support for IDs from 14 up to 20 characters long
+failregex = ^%(__prefix_line)s\w{14,20}: (\S+ )?\[(?:IPv6:<IP6>|<IP4>)\]( \(may be forged\))?: possible SMTP attack: command=AUTH, count=\d+$
 
 ignoreregex =