Tuesday, December 28, 1999, 6:14:39 PM, Sashka wrote:
> IMHO, Bat doesn't generate them,

    TB! does generate them.  From my last message on this topic:

Message-ID: <[EMAIL PROTECTED]>

> mail server adds them to headers.

    This *can* happen if a message doesn't have a MSGID.

> And this only way it will be only one e-mail or article with same number.

    This is false.  MSGIDs are generally a mixture of random, incremental and
static data.  If we take the first 4 digits in [EMAIL PROTECTED] as
random here is how it breaks down.

2735 - Random number.  I don't think it is purely random, but there it is.

991228 - Today's date.

rpglink.com - The host "sending" the message.

    For a duplicate MSGID to be generated it would have to be from this host,
on this day, with the same first 4 digits.  That, alone, is a virtual
impossibility.

    Now, the mail servers do basically the same thing.  They will use a mix of
constant and dynamic data to guarentee that the chance of a duplicate is
virtually impossible to come up with.  Having the server attach a MSGID to a
message does not make it any more or less likely of a duplicate.  In fact, all
it does is prevent you from doing a search on the MSGID of your own messages
since they are not a part of your sent-mail.


-- 
         Steve C. Lamb         | I'm your priest, I'm your shrink, I'm your
         ICQ: 5107343          | main connection to the switchboard of souls.
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