I just wonder, I found following entry (actually a few) in the Postfix mail queue: Code: [email protected][email protected] 159159_vps-host.com (changed) resolves to my VPS IP. Obviously the email is not from me. I presume a spammer tries to use my MX to send spam. What worries me of course is if there are successful attempts to spam via my MX. In the maillog I find entries like this one (50 per Minute): Code: Nov 8 03:21:56 159159_vps postfix/smtp: AD30C506001E: to=<[email protected] [18.104.22.168] (changed) is my IP. My question is, is everything normal or do I need to worry?