Splitting, crossposts, duplicates, the universe, and everything.

[Lloyd Zusman <ljz@asfast.com>]

[ This is an auto-generated, courtesy copy of a message that I've
  also posted to the gnu.emacs.gnus newsgroup. ]

I'm using pgnus-0.43, and I'm running into a situation involving mail
splitting that I don't know how to solve.

Suppose these are my split methods:

 (setq nnmail-split-methods 
        '(("one"      "^\\(To\\|Cc\\):.*one@asfast\\.com")
          ("two"      "^\\(To\\|Cc\\):.*two@asfast\\.com")
          ("three"    "^\\(To\\|Cc\\):.*three@asfast\\.com")
          ("four"     "^\\(To\\|Cc\\):.*four@asfast\\.com")
	  ("other"    "")))

Furthermore, suppose I have set `nnmail-crosspost' to nil.

I have all my incoming email to the various users on my system going
to a single mail spool, and I use Gnus to split it.

Now, suppose I receive some email with the following `To:' line:

 To: one@asfast.com, two@asfast.com, three@asfast.com, four@asfast.com

Once the mail is split, it only ends up in my `one' mailbox.  But what
I want is a single copy in each of the `one', `two', `three', and
`four' mailboxes.  OK.  So I figured that I'd just set
`nnmail-crosspost' to `t'.  Once I did that, an email with the same
`To:' line as above indeed ended up in each of those four mailboxes,
but it appeared four times in each one, for a total of 16 instances
altogether.

I sort of see why this happened, but I'm wondering if there's a way to
prevent this.  I'd like to cause one and only one copy to appear in
each of the mailboxes that appear on the `To:' line.

I looked at `nnmail-split-fancy', and it doesn't seem to handle this
case.

Any ideas?

Thanks in advance.

-- 
 Lloyd Zusman
 ljz@asfast.com