I have a situation where I got dinged as a spammer. From the logs, it looks like the problem was on their end, because a legitimate address was coming back as "user not found." Anyway, it brought up the point that I probably shouldn't be sending SMTP myself; I should probably be sending it through my big, reputable ISP, and letting them deal with "credibility" issues.
Based on something I found through Google, I set "DSsmtp.isp.com" in my /etc/mail/sendmail.cf file, and restarted sendmail. This didn't change the relay. I restarted scalix (through the rc file), and it still didn't change. So I'll ask directly: what's the best way to set this?
TIA,
dk