diff --git a/autoconf/domains.csv b/autoconf/domains.csv
index 239429a..a2a44f7 100644
--- a/autoconf/domains.csv
+++ b/autoconf/domains.csv
@@ -102,3 +102,4 @@ ya.ru,imap.yandex.com,993,smtp.yandex.com,465
 narod.ru,imap.yandex.com,993,smtp.yandex.com,465
 muny.us,mail.muny.us,993,mail.muny.us,465
 billycarlyle.uk,mail.muny.us,993,mail.muny.us,465
+mailbox.org,imap.mailbox.org,993,smtp.mailbox.org,465