OT - duplicate emails

[David Relson]

On Tue, 07 Sep 2004 14:37:22 -0700
.rp wrote:

> > If we are talking about simple duplicated messages, then I would
> > like to suggest a procmail ruleset of:
> > 
> > # remove duplicate emails
> > :0 Wh: msgid.lock
> > | formail -D 2048 msgid.cache
> > 
> How does this work? We often get dictionary attacks that SA or BF
> pickoff, but if we can limit the work using this ...

Run "man formail" for an explanation of the "-D" option.

Note:  The procmail snippet is incomplete since it doesn't check
formail's return code.