[EMAIL PROTECTED] wrote:
I am a bit worried about blocking people with dynamic IP addresses say from
their ISP, if they "inherit" an IP address recently used by an infected PC
they will still be in the RBL and get blocked.
Machines on dynamic IPs should not be doing direct-to-MX submission,
so block their entire networks with no looking back, eg use spamhaus
PBL. In the spam business, nice, meticulous, conscientious people
always get screwed.
The network operators should be blocking access from their
subscriber access networks to port 25.
Hi,
this last point means that their customers are bound to use the network
operator's smtp for sending.
While I generally believe that end users should send thru a smarthost, I also
think it is a bad
idea to restrict them to the network provider's smarthost. They might prefer to
send via their
company's SMTP instead
...which is exactly the reason SMTP Auth operating over port 587 exists.
Steve
