Hi

>On Sat, 19 Apr 2014 08:26:59 +0200, Martin Braun <yellowgoldm...@gmail.com> 
>said:
>> Hi
>
>> I was thinking about adding DKIM and SPF to my OpenSMTPD setup as I
>> have previously run with those, but I am in doubt.
>
>> I am thinking about the "worth" of those technologies?
>
>> I used to think SPF was a good idea, but SPF fails if someone forwards
>> email to another server. Then the forwarding server is not listed in
>> the SPF entry and the destination mail server will reject the email.
>
>SRS[1][2]. 
>
>References:
>[1]  http://www.openspf.org/SRS
>[2]  http://www.libsrs2.org/

Yes that does provide a (horrid) workaround (the mail from field was
never meant to carry trace info), but it relies on _other mtas_ using
it and in my experience a fair quantity don't. It is annoying to have
your mail bounce just because you have set up correct SPF records.

JC

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