spf-discuss
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Re: Unified SPF: example with single domain, multiple machines

2004-06-18 13:39:26
On Fri, Jun 18, 2004 at 09:26:10PM +0100, Karl Prince wrote:
| Not happy to disagree with Meng, but here goes
| 
| In the above example SPF records, I believe that
| 
| >   www.example.com TXT "v=spf1 a -all"
| 
| is incorrect, and should be
| 
| www.example.com TXT "v=spf1 -all"
| 
| Since www.example.com should/would never be a sender domain, 
| and for a bounce it would use it's HELO of example.com as the 
| sender domain

You're quite right.  I was erring on the side of safety:
maybe once a month the webserver sends mail as
webmaster(_at_)www(_dot_)example(_dot_)com for some bizarre reason.