A bit off-topic: problems with sending to a Gmail user

[Claus Assmann]

On Fri, Mar 11, 2022, Stefan Hagen wrote:

> > >     550-5.7.26 This message does not have authentication information or fails to

> Authenticated in this context means, you don't have SPF / DKIM / DMARC set up.

[more off-topic/rant]
Isn't it nice how Google et.al. enforce things which are
neither mandatory nor really useful to "fight spam"?
All the spam I get at $WORK is from gmail and it has passed
all of those "requirements" -- but the "investment"/"loan"/...
spam/scams are not filtered at all by Google themselves
(hey, why should they do outbound spam filtering? it cost them money
and why should they care? it's not like anyone important would block
gmail -- but Google rejects mail coming to them due to bogus reasons).

"Solution": ask gmail users to switch to other services which do
not have so many "false positives".

PS: maybe there is an option in gmail for users to whitelist senders
from whom they want to receive mail?