On 2023-07-11 at 11:08:23 UTC-0400 (Tue, 11 Jul 2023 17:08:23 +0200)
Benny Pedersen via mailop <m...@junc.eu>
is rumored to have said:

> direct to mx will have spf pass without +all, on next hub envelope sender 
> changes, so new spf problem when next hub forwards mails,

You keep repeating this (and equivalent statements) as if it is true.

***IT IS FALSE***

Unless a MTA implements something like SRS specifically to accommodate SPF, the 
envelope sender a mail arrives with is the same one it is relayed with, if it 
is being forwarded by the traditional "aliases" and ".forward" mechanisms of 
Sendmail and Postfix. This practice, *without SRS*, is still the most 
widespread form of forwarding individual addresses to other individual 
addresses.


-- 
Bill Cole
b...@scconsult.com or billc...@apache.org
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
Not Currently Available For Hire
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