Re: Blocking google IPs?

On 22/02/2025 05:33, Greg Troxel wrote:

> Alex <[email protected]> writes:
> 
>> I can't explain to users that day after day, there's some random gmail 
>> user
>> being blocked because one of the world's largest providers is allowing
>> their IPs used by millions of other users to be abused.
>> 
>> There's nothing my users or the legitimate users sending email to my 
>> users
>> can do about it, and it's always reactionary - it's not like I can 
>> explain
>> to them that if their users use one particular Google IP that they 
>> could
>> have incoming mail blocked.
> 
> That's not true.   People can stop using gmail.  If it were anybody but
> gmail that had this degree of outbound spam, they'd just be blocked.
> 
> My experience as a receiver is that mail that arrives from gmail sorts
> into
> 
> legit mail from a known addr (a fair bit)
> legit mail from an unknown addr (almost never)
> spam from an unknown (a fair bit)
> 
> To me the right approach is to make sure txrep gives negative points to
> addresses that your users send mail to.

Remember the olden days, where Microsoft would use headers and checksums 
IIRC, to never mark an inbound message as junk, if they are replying to 
your outbound message, I kind of liked that idea back in the original 
hotmail days, but looks like they abandoned that a long time ago.

-- 
Regards,
Noel Butler