the md5 method is the one I've been using, but there are complications. For
example, sometimes the body is empty (an HTML message or an attachment). I
can't MD5 the whole .mail file because the ESMTP ID and the delivery time
both change. To the best of my knowledge, though, these are the only two
things that change in the duplicate message.
Yes, I could parse the email message, remove those two items, and MD5 the
remainder, but I'm hoping that there's an easier way.
Thx for your suggestions.
Tac
----- Original Message -----
From: "DDB Lists" <[EMAIL PROTECTED]>
To: "inFusion Support List" <[EMAIL PROTECTED]>
Sent: Friday, January 03, 2003 2:44 PM
Subject: Re: [iMS] duplicate messages
> First, is it sure that the mesage-id changes between two post attempts?
May
> be worth checking, testing.
>
> Second, what you could do I guess is calculate an md5 hash or something
> similar of the body, and store that for a few hours. On every new message,
> compare the hash with those of the last 6 or so hours to decide it's a
dupe
> or not. This will put some strain on the server but should work.
>
> ----- Original Message -----
> From: "Tac" <[EMAIL PROTECTED]>
> To: "inFusion Support List" <[EMAIL PROTECTED]>
> Sent: Friday, January 03, 2003 8:25 PM
> Subject: [iMS] duplicate messages
>
>
> > Is anyone else seeing a problem with receiving duplicate messages?
Howie
> > and I exchanges messages off-list last night, and one of his message
came
> to
> > me twice, 1/2 hour apart. We discussed what happened (his side saw a
> > timeout, and re-queued the message, my side thought everything went
fine,
> > sent the "result=accept", and so the message got processed twice).
> >
> > Not a biggie if it's coming to a mailbox, but huge if the recipient is a
> > list message ultimately going to 30,000 people. I've been seeing a lot
of
> > duplicate messages, probably with this exact situation (probably daily),
> and
> > was wondering if anyone else saw this.
> >
> > I can't do a checksum of the message to avoid dups (because the time and
> > message id change), so I'm at a loss as to how to avoid duplicates from
> > clogging the system.
> >
> > Ideas?
> >
> > Thx,
> >
> > Tac
> >
> >
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