Authenticated Outbound Email (SMTP-AUTH), “Port 25″ and “Port 587″
Friday, January 4th, 2008ISP's today are blocking port 25 from their users. This is a good thing. Originally mail servers didn't distinguish between (SMTP) mail traffic from servers and SMTP mail traffic from users. With the rising use of public networks by spammers, a method was developed to segregate server mail traffic from ...
