Dnia 24.01.2020 o godz. 12:24:56 Johann Klasek via mailop pisze:
> The worst is using +all in any case just to try to prevent forwarding and
> mainlinglist troubles. In such case it would be better not to use SPF at
> all. 

The problem is, Google (and probably other big e-mail providers too, I have
checked only Google) explicitly requires in their sender guidelines that you
use SPF when sending mail to them. I would gladly not use SPF, and I didn't
for a long time, until I started to have Gmail deliverability problems. So
basically if you want to send mail to Google users (and given the huge
popularity of Gmail, it's practically guaranteed that you will have to send
mail to someone with a Gmail address), you have to use SPF.

So "?all" seems to be the best option.
-- 
Regards,
   Jaroslaw Rafa
   r...@rafa.eu.org
--
"In a million years, when kids go to school, they're gonna know: once there
was a Hushpuppy, and she lived with her daddy in the Bathtub."

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