[gentoo-user] grep -lr ignoring subdirs that start with dot (.)?

[Tanstaafl]

Hi all,

Ok, this is driving me crazy...

I want to be able to quickly search an entire users Maildir for an email
containing a certain string, but output just the filenames WITH THE
DATE/TIMEs...

So, from the target users top level Maildir:

grep -lr <searchstring> * | xargs ls -lt

^^^ appears to work, and does return results for the cur and new
subdirs, but seems to be ignoring the rest of the Maildirs. Maybe it has
something to do with the fact that they start with dots (ie, .Sent,
.Trash, etc)??

Anyone have any idea why the above doesn't search them all?

Thanks