Malicious IP email blocklist

Our anti-spam system has begun implementing a malicious IP blocklist to prevent and reduce outgoing spam emails from compromised customers. So far the results have been excellent; however, we want to prevent confusion and frustration for customers who have run afoul of this spam prevention technique. Please continue reading if you have been directed here by an error message when attempting to send mail through our system.

Emails are rejected by our mail server if your IP address is listed on the block list (this means that a computer associated with that IP address was, or still is, compromised and sending spam emails). In order to address the block you'll want to take the following steps:


 * Run a full, updated security scan on any devices which you using from the blocked IP
 * Report the malicious IP space to your ISP (they can get it re-assigned or possible cleared from the listing)*
 * Once your computers are confirmed clean of malicious software. Follow your ISPs instructions on how to get a new IP address lease (this may involve rebooting your home router.)

[*] Please be sure to complete step 1 before proceeding or the IP will just get re-listed if there is still a compromised device connecting to the internet through that IP.

Remember that you may always use our webmail service (by default set to https://webmail.yourdomain.com) to send mail in the meantime as webmail runs completely on our system and will not require you to connect through the blocked IP for sending of mail. If you require any further assistance or have questions please feel free to contact our support staff via the panel here: https://panel.dreamhost.com/index.cgi?tree=support.msg& or directly using your listed contact email address at: support@dreamhost.com