When I send an email from my client in San Antonio to a sendmail server in Houston, does it route directly to port 25? Or does it land on the isp serving the Houston server, and then get routed to the server.
Reason for question is if I block all 25 port traffic in the Houston router except for mail.swbell.net, will that work or will that simply stop email?
Thanks.
Reason for question is if I block all 25 port traffic in the Houston router except for mail.swbell.net, will that work or will that simply stop email?
Thanks.