As discussed in #fedora-admin. syncmail is pulling from owners.list:
08:33 < abadger1999> t8m, mmcgrath: getnotifylist is using owners.list and needs to use the pkgdb instead.
08:33 < abadger1999> I have to fix that this week.
New code is live. getnotifylist is now pulling from pkgdb. All code that I'm aware of is now ported to the pkgdb.
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