I have configured dovecot and transferred my MX records to it. After few days e-mails are not getting delivered to domains like yahoo and MSN as my IP was blacklisted with Spamhaus. I have removed my IP from spamhaus but its a temporary solution.Later on my IP is getting blocked by spamhaus. Should i do any kind of configuration on my server to stop spam going through SMTP.
Why is your IP blacklisted by Spamhaus?Did you spam?Is it a shared IP?If so,then you can change a dedicated one to avoid being affected by other users.
Good point. Also if this mail server is on a network with other computers see if they are sending the spam. They could have some malware or something on them.