Re: [Exim] Departed users, forwarding addresses and collater…

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Autor: Tony Finch
Data:  
Para: Alan J. Flavell
CC: Exim users list
Assunto: Re: [Exim] Departed users, forwarding addresses and collateral spam
On Sat, 29 May 2004, Alan J. Flavell wrote:
>
> I'd like to raise the idea that, where such forwarded addresses no
> longer ever send mail, it would be good practice for mailers to only
> accept actual mail items, i.e items with a non-null envelope sender,
> when they are addressed to one of these old addresses; and should
> reject anything with a null envelope sender, on the grounds that there
> can be no valid delivery status notifications in relation to an
> address which no longer ever sends mail.
>
> Is this a generally good idea? Have others tried it, or something
> similar? Are there some knock-on effects which I'm missing?


I think this is a good idea. In fact, I use this principle to protect
myself from collateral spam: my usual envelope sender address is not
well-known so only receives legitimate bounces, and I junk bounces that go
to dot@??? etc.

--
Tony Finch <dot@???> http://dotat.at/