Re: SPF

[Chris Edwards <chris () ENG GLA AC UK>]

On Tue, 8 Mar 2005, Dave Koontz wrote:

| 5) If you allow your users to FORWARD email, this will break for any
| receiving server that runs SPF unless your mail server has the ability to
| rewrite the message headers.  You will need to replace the FROM with the
| User () YourDomain edu and the TO with the ForwardedAddress () ForwardedDomain com
| addresses.

Hi,

That's fine, but what happens where your users mail other sites[1] which allow
-their- users to forward email AND do not perform the above rewriting tricks?
If the final receiving server runs SPF it will distrust or reject your mail :-(

[1] Lots (most?) sites fall into this category, particularly in academia.

--
Chris Edwards, Glasgow University Computing Service

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