[GRLUG] Google & SPF

[Grand Rapids Linux Users Group]

Can you expand on your use case a bit? Because blocking unauthorized 
relays (or at least alerting the receiver of mail inbound from them so 
they can be scored appropriately by recipient spam filters) is one of 
the main purposes for SPF records.

Warm Regards,
Kyle Maas



On 6/4/22 13:25, Grand Rapids Linux Users Group wrote:
> Last winter, Google started throwing an SPF error if a relay MTA (i.e.
> email forwarded by an email alias) is not in the *source* SPF record, OR
> the source MTA must allow relaying by not having "-all" in that record.
>
> Is there any logic behind this, or just Google throwinf their weight
> around? What ESPECIALLY ticks me off is that Google is the biggest Spam
> source we see with all their base64 cruft from middle eastern names.
>
> 	TIA!