What is Blacklisting?
When someone sends out spam, it is possible for the recipient of the email to mark the email as spam. When an email message is flagged as spam, the email is reviewed for blacklisting. If the email is determined to be spam, the IP address and/or the email address that sent the spam may become blacklisted.
There are two scenarios in which you may encounter blacklisting using HostGator services. If you are not receiving messages from a certain contact, it is possible that the contact has been blacklisted. Alternatively, you may be receiving bounceback messages saying that your mail was not delivered. In this case, it may be that your server or email address has been blacklisted.
Receiving Mail From Blacklisted Sources
Our Shared and Reseller servers keep a list in sync with companies that monitor IP addresses that are sending spam. If a sender's IP address is on this list, then our servers will block email from the IP until the sender's IP is no longer on the list.
Our list is updated every four hours which will allow for mail to continue normal delivery if the sender has their IP address removed from the blacklist. If you wish to receive email from a domain that is on a blacklist you will need to get a VPS server.
- Go to the blacklist check tool at mxtoolbox.com
- Enter the server name or IP address the email originated from.
- Click the Blacklist Check button.
- Follow any onscreen prompts.
What If I am Blacklisted?
If you become blacklisted, the emails you send to destinations that screen blacklists will return your emails with a bounceback message that mentions the fact that you are blacklisted. If you get a bounceback error that you cannot figure out, please follow the blacklist check instructions below .
If you determine that your server is blacklisted, please visit the WHOA website so that you can enable the full headers of the email. (Full headers are required so that we can help solve your problem.) For more information about full headers, see:
- submit a ticket to our Support department for a NON-blacklist issue
- submit a ticket to our Security department for a blacklist issue
Information for Employees:
When a customer comes in to chat or call and you believe they may have a blacklisting issue, please gather the proper information to create a ticket. Note that many times it is the customer's connecting IP that is the one listed, not the server IP. If you have questions, please consult an L2 or supervisor to make sure that it is actually the server that is blacklisted.
When submitting the ticket to the Security queue, please create the ticket with a subject line of Blacklisted followed by the IP address in question so the subject looks like this: