On 7/22/2013 11:17 AM, bind-users-requ...@lists.isc.org wrote:
This was discussed here already, and imho this is anti-spf bullshit like
>>all those "spf breaks forwarding" FUD. The SPF RR is already here and is
>>preferred over TXT that is generik RR type, unlike SPF.
On 22.07.13 08:50, Barry S. Finkel wrote:
>It is not Fear, Uncertainty, and Doubt that "SPF breaks forwarding".
>SPF*DOES* break forwarding.
No, it does not. If a mail gets delivered to address, which is sending it
further ("forwarding it"), the envelope sender has to be changed, because
it's not the original sender who sends the another mail. Forwarding without
changing envelope address is already broken, it's just people don't care
without SPF.
> I have a case I am researching right now
>where forwarded mail is undeliverable due to SPF checking at the
>new destination.
Rewrite the sender's address. You have more choices, SRS is one of them.
-- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
I have no control over what my Mail User Agent does. And a quick reading
of section 3.6.6 of RFC 5322 does not tell me what is the correct action
on a forwarded message:
1) Change the "From:" address, or
2) Keep the "From:" address.
My MUA, Thunderbird, does 1). And I do not see any configuration
option. I am not sure which action is "correct".
I do not know what implications for forwarding SMTP (RFC 5321) has.
--Barry Finkel
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