Dupes and Dates

Christopher Neill chrisn at qual.net
Wed Aug 19 04:12:26 UTC 1998

On Tue, Aug 18, 1998 at 10:28:21PM -0500, James Rishaw wrote:
> Here's how you get rid of duplicate email..
> at the beginning of your .procmailrc:
> --snip--
> :0 Wh: msgid.lock
> | formail -D 65536 $HOME/.msgid.cache
> --snip--
> Creates a message-id cache with up to 65k of message-id's for cache..
> eliminates dupes.. seeing an average message-id is 45 chars or so this
> will give you a cache of the last 1456 e-mail msg-ids.

..but unless you are as popular as Jamie Rishaw, 8k will probably do.
That's from the procmailex man page by the way. Everyone should be 
required to memorize it. Nesting rules rock.


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