add domain to domains.csv

ml1.net is another fastmail domain.

autoconf/domains.csv

@@ -104,6 +104,7 @@ mail.com,imap.mail.com,995,smtp.mail.com,587
 mail.ru,imap.mail.ru,993,smtp.mail.ru,465
 mailbox.org,imap.mailbox.org,993,smtps.mailbox.org,465
 memeware.net,mail.cock.li,993,mail.cock.li,587
+ml1.net,imap.fastmail.com,993,smtp.fastmail.com,465
 mortemale.org,mail.autistici.org,993,smtp.autistici.org,465
 msn.com,imap-mail.outlook.com,993,smtp-mail.outlook.com,587
 muny.us,mail.muny.us,993,mail.muny.us,465