soprom,
So you might be well advised to be causious...
mmm, but to find out which contrib needs this is beyond me. But I do know I need the updates to other contribs. Our Affa box will just update with no dependency issue, although not all our contribs are installed on it.
I'm tending to think like normando and dz00te on this one - just do a yum remove perl-DateTime-Format-Mail and see what happens - they have not reported any dire consequences (not that that means nothing happened...)
Rather gung-ho, and I usually wouldn't do this but life goes on, so here goes
Edit: 17 packages successfully updated. I can also confirm perl-DateTime-Format-Mail downgraded to 1:0.41-1.el4 The server is back up. If something fails I'll report back here for the benefit of others.