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Re: Outlook Express feature could crash e-mail servers
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Re: Outlook Express feature could crash e-mail servers

  • To: NTBUGTRAQLISTSERV.NTBUGTRAQ.COM
  • Subject: Re: Outlook Express feature could crash e-mail servers
  • From: tonySECAPL.COM
  • Date: Wed, 17 Jun 1998 12:10:14 -0400
  • In-Reply-To: <199806171049.FAA14310Farstar.secapl.com>
  • Reply-To: tonySECAPL.COM
  • Sender: Windows NT BugTraq Mailing List <NTBUGTRAQLISTSERV.NTBUGTRAQ.COM>
On Wed, 17 Jun 1998, Basse, Daniel wrote:

> Outlook Express users can get around file size limitations many ISPs put
> on their e-mail systems by breaking large files into many small
> documents. The problem is that user can elect to make the fragments as
> small as 16Kb, which means that a single large file can be transformed
> into thousands of separate e-mail messages, all targeting a single
> in-box.

Although this is a Bad Thing, it's been possible as long as SMTP has been
around. I don't see the difference between this and a whacker sending tens
of thousands of mails programmatically, except that this could be done
more easily by accident. (not sure if such accidental mail DoS counts as
an exploit or attack.)