On Tue, 10 Apr 2007, Magnus Holmgren wrote:
>
> SPF doesn't break forwarding if employed carefully. Mail isn't forwarded
> totally randomly; in sane configurations a user U tells a system A to forward
> his mail to system B. If B wants to enforce SPF, they have to allow U to tell
> them about this forwarding, so that an exception can be made.

It's unreasonable to expect users to do this.

> Otherwise they could specify the IP addresses the forwarded mail can
> come from (but that's complicated), or in many cases simply specifying
> the mail address forwarded from, letting the SPF-enforcing server make
> educated guesses, can work.

That's remarkably optimistic.

Tony.
-- 
<[EMAIL PROTECTED]>   <[EMAIL PROTECTED]>   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}}

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