ansible-debian/ufw/applications.d/ufw-mailserver

[POP3]
title=Mail server (POP3)
description=Mail server (POP3)
ports=110/tcp

[POP3S]
title=Secure mail server (POP3S)
description=Secure mail server (POP3S)
ports=995/tcp

[IMAP]
title=Mail server (IMAP)
description=Mail server (IMAP)
ports=143/tcp

[IMAPS]
title=Secure mail server (IMAPS)
description=Secure mail server (IMAPS)
ports=993/tcp

[SMTP]
title=Mail server (SMTP)
description=Mail server (SMTP)
ports=25/tcp

[Mail submission]
title=Mail server (Submission)
description=Mail server (Submission)
ports=587/tcp