this package seems to have new commits in its VCS but has
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Here are the relevant commit logs:
Author: Debian Janitor <firstname.lastname@example.org>
Date: Sun Sep 12 22:17:50 2021 +0000
Remove constraints unnecessary since buster
* libmail-transport-perl: Drop versioned constraint on libmail-box-perl in Replaces.
* libmail-transport-perl: Drop versioned constraint on libmail-box-perl in Breaks.