What is the recommended action to resolve this warning?
For lists that aren't suitable to transition to lists.debian.org there isn't
one. Unsolvable warnings don't help anyone.
We've already had to have someone reupload multiple packages for PAPT because
they 'fixed' this problem by using the wrong mailing list. Until this is
actionable, this should be info at most. Pedantic even better.
Bug#958182: mailing-list-obsolete-in-debian-infrastructure tag considered harmful
> What is the recommended action to resolve this warning?
I'm not sure this bug report is the right place to work what you
should do in any great detail as others will not see it. Did you
check the wiki page listed in the long description?
N: The specified field points to an area within the *.debian.org
N: infrastructure that has been marked as obsolete.
N: For example, lists.alioth.debian.org was migrated to a separate
N: debian.net system run by DDs. This is likely to be time-limited period
N: of a few years.
N: For further information, please consult the Debian Wiki.
N: Refer to https://wiki.debian.org/Alioth/MailingListContinuation for
N: Severity: warning
Updating this description (or the wiki page itself) might be something
worth investing a few moments in for the Project as a whole.