} Hmm, I have wondered for a bit why Smail (presumably Exim does it
} because it's based loosely on Smail) refers to SMTP as smtp in
} "Received:" headers since it's an acronym,
why not - they aren't really intended to be essays of english style!
} and why it uses those
} rather odd style message-ids that look like gibberish.
A message ID is gibberish!
Smail's message IDs are also used as queue file names, so needed to be a
maximum of 14 characters long (old System V portability). They have to be
unique, so they are built of a timestamp and a inode number (of the queue
file) which is pretty much uinque. These 2 numbers are base 63 encoded,
joined by a hyphen and have a priority character appended. It all makes
perfect sense really!
Exim extends this by adding a pid.
BTW this is all from memory so I may be slightly out in places!
Nigel.
--
[ Nigel.Metheringham@??? - Unix Applications Engineer ]
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[[[ Welcome to Grace, arrived 01:37 BST, 18 Sept 1996, 5lb 15oz ]]]
