Re: Gnus5, procmail, and reading mail lists.

[Per Abrahamsen <abraham@dina.kvl.dk>]

>>>>> "SLB" == Steven L Baur <steve@miranova.com> writes:

SLB> Exactly.  You end up with two messages with identical message-ids
SLB> going into the same nnml folder, one of which is now in a Gnus black
SLB> hole, and cannot be referenced reasonably, or two identical messages
SLB> going into the hyperarchive.

If you use procmail, I suggest using the following code to sort out
duplicates (stolen from someone on the procmail list):

#####################
# Prevent dubplicates

:0
{
 :0 Whc: .msgid.lock     # w produces (non-fatal) error msg
 | formail -D 8192 .msgid.cache

 :0 a
 mail/duplicate/.
}