[Info-vax] Decuserve.org - Anyone know why it's down?

[John E. Malmberg]

On 1/6/2015 7:46 AM, JF Mezei wrote:
>
> This is why SPF records exist, to list the hosts authorized to send mail
> on behalf of a domain.

SPF records were implemented to allow delayed bouncing so that companies 
can try to sort the spam from ham with out doing real-time processing in 
the SMTP transaction.

SPF records have been adopted by spammers, and filtering on SPF will 
have no effect on incoming spam.  It will not detect any additional spam 
than would be detected using the existing conservative blocking lists.

The only purpose of the SPF record is to let mail server know that if 
they bounce an undelivered message, that the bounce will likely not go 
to a innocent victim, so that companies can continue using mail servers 
that do delayed bouncing.

The "rMX" proposal was the method to intentionally designate a system is 
allowed to send e-mail.  That proposal did not gain traction.

Regards,
-John
wb8tyw at qsl.network
Personal Opinion Only