Re: [exim] Domain Keys

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Author: Tony Finch
Date:  
To: Magnus Holmgren
CC: exim-users
Subject: Re: [exim] Domain Keys
On Tue, 10 Apr 2007, Magnus Holmgren wrote:
> On Tuesday 10 April 2007 12:25, Tony Finch wrote:
> >
> > It's unreasonable to expect users to do this.
>
> Not more so than expecting them to choose good passwords...(?)


Worse than that. Hopeless.

> 1. U tells A to forward mail to user+whatever@???


U will not have the slightest idea that user+whatever@???
exists. A will not give the slightest suggestion to U that their usual
user@??? will not work for forwarding.

> > That's remarkably optimistic.
>
> You'd of course make sure that you stay on the safe (false negative) side.


Yes, by shunning SPF since it's utterly misguided.

Tony.
--
<fanf@???> <dot@???> http://dotat.at/ ${sg{\N${sg{\
N\}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}\
\N}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}