Maybe thats a good reason to make it an MTA feature. If the MTA keeps
a record of valid requests that were sent out it can drop the invalid
ones without the need to verify the source. It would require the
maintance of a log contain a list of message id's which expect return
receipts.
-Sean
On Sat, 24 Jan 1998, John Henders wrote:
> Taken from an article in the news.admin.net-abuse.email newsgroup.
>
> spamtrap@??? writes...
> [re: the use of Return-Receipt-To: headers]
>
> > >Why is it an "attractive nuisance" that you think shouldn't be honored
> > >until authenticated email is common? I can understand somewhat the
> > >bandwidth-usage issues, but security?
> >
> > OK. I send a million messages to a million addrress with a From of
> > postmaster (at) crl (dot) com, with a Return-Receipt-To of the same. What
> > happens if all million of them honor it? The potential for mail bombing is
> > just too high.
>
> --
> Artificial Intelligence stands no chance against Natural Stupidity.
> GAT d- -p+(--) c++++ l++ u++ t- m--- W--- !v
> b+++ e* s-/+ n-(?) h++ f+g+ w+++ y*
>
>
> --
> *** Exim information can be found at http://www.exim.org/ ***
>
--
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