/etc/ufw/applications.d/postfix is in postfix 2.11.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | [Postfix]
title=Mail server (SMTP)
description=Postfix is a high-performance mail transport agent
ports=25/tcp
[Postfix SMTPS]
title=Mail server (SMTPS)
description=Postfix is a high-performance mail transport agent
ports=465/tcp
[Postfix Submission]
title=Mail server (Submission)
description=Postfix is a high-performance mail transport agent
ports=587/tcp
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