On Tue, Nov 02, 2004 at 06:24:42AM -0800, BIJU KRISHNAN wrote:
On such n/w's I'am able to send mail from xyz@copstop.com to abc@copstop.com using low level SMTP chat from home by telnet to port 25 to one of copstop.com's relay servers facing the internet. Where'as i'am not either of the two. Is there a way out where I can stop mail from: xyz@copstop.com
You'd kill my ability to send email from home to work. Though you didn't say anything about SMTP AUTH, which is what $workplace uses.
But look at SPF.