* Edmund GRIMLEY EVANS <[EMAIL PROTECTED]> [2002-04-17 23:59:39 +0100]: > David Kelly <[EMAIL PROTECTED]>: > > > Somehow I've missed the start of Edmund's .procmailrc. But why wouldn't > > one do it this way rather than MD5 all that stuff manually? Have you > > found the message-id header to be that unreliable? > > Pointless paranoia really, but imagine this: someone could subscribe > to the same mailing list as you, with an address starting with 'a', so > they get the messages before you, then send you messages with the same > Message-ID as each message on the list. If their messages reach you > first, the real messages could be deleted by your formail script.
And there are some broken mailers in use which generate duplicate MIDs. Nicolas
