diff --git a/fail2ban/tests/files/logs/dovecot b/fail2ban/tests/files/logs/dovecot
index 6bcf8c5b..e780411b 100644
--- a/fail2ban/tests/files/logs/dovecot
+++ b/fail2ban/tests/files/logs/dovecot
@@ -107,6 +107,8 @@ Jul 26 11:12:19 hostname dovecot: imap-login: Disconnected: Too many invalid com
 
 # failJSON: { "time": "2004-08-28T06:38:51", "match": true , "host": "192.0.2.3" }
 Aug 28 06:38:51 s166-62-100-187 dovecot: imap-login: Disconnected (auth failed, 1 attempts in 9 secs): user=<administrator@example.com>, method=PLAIN, rip=192.0.2.3, lip=192.168.1.2, TLS: Disconnected, TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)
+# failJSON: { "time": "2004-08-28T06:38:52", "match": true , "host": "192.0.2.4", "desc": "open parenthesis in optional part between Disconnected and (auth failed ...), gh-3210" }
+Aug 28 06:38:52 s166-62-100-187 dovecot: imap-login: Disconnected: Connection closed: read(size=1003) failed: Connection reset by peer (auth failed, 1 attempts in 0 secs): user=<test@example.com>, rip=192.0.2.4, lip=127.0.0.19, session=<Lsz0Oo7WXti3b7xe>
 
 # failJSON: { "time": "2004-08-29T03:17:18", "match": true , "host": "192.0.2.133" }
 Aug 29 03:17:18 server dovecot: submission-login: Client has quit the connection (auth failed, 1 attempts in 2 secs): user=<user1>, method=LOGIN, rip=192.0.2.133, lip=0.0.0.0