Charles Cazabon <[EMAIL PROTECTED]> wrote on Thu, 13 Jan 2000:
> You can generate an ID for them. But you shouldn't really use message ID to
> detect duplicates, although its a common practice. Message IDs are supposed
> to be unique, but sometimes aren't. If you want to do it properly, generate
> a cryptographic hash of the message (either the whole thing, or just
> the body) with md5 or something, and compare those.
There is already at least one, possible two mail filters which store
hashes along with message-ID's to detect duplicate emails. They're
linked from the qmail web page I believe. They're meant to be used
from .qmail files, but they might be easily adapted to be used from
other places too, I think (haven't tried though).
Mikko
--
// Mikko Hänninen, aka. Wizzu // [EMAIL PROTECTED] // http://www.iki.fi/wiz/
// The Corrs list maintainer // net.freak // DALnet IRC operator /
// Interests: roleplaying, Linux, the Net, fantasy & scifi, the Corrs /
"Managing senior programmers is like herding cats." -- Dave Platt
