Avoid being blacklisted
- Article Number: 000007317
- Products: Forcepoint Email Security, Forcepoint Email Security Cloud, TRITON AP-EMAIL
- Version: All Versions, 8.5, 8.4, 8.3
- Last Published Date: February 16, 2021
Notes & Warnings
Please refer to Forcepoint Product Documentation for information on how to enable these configurations within your Forcepoint Email Security product.
My IP address / mail domain has been blacklisted and I am unable to send out mail to many providers. What steps can I take to resolve this, and how can I prevent this from happening again?
In order to get removed from a public Realtime BlackList (RBL) you will need to contact the list provider to request de-listing. You can find which RBL provider has listed you using this a third party site such as MX Toolbox.
Before you do this however, be sure to identify and resolve the problem that caused the blacklisting, or you will quickly be blacklisted again. The non-delivery reports you receive in relation to your rejected messages should provide details on why your IP or domain is blacklisted. For further details, you may need to contact the list provider.
Once you have resolved the cause of the blacklisting your IP address may be removed automatically from the list after a period of time. Other providers require you to actively request de-listing.
Common reasons for ending up on a public blacklist include:
In order to prevent blacklisting, consider the following:
Cause: Sending out spam or virus messages (knowingly or unknowingly)
Cause: Sending out large volumes of mail (e.g. bulk mailshots or marketing campaigns)
Cause: Sending out backscatter
Additional steps to protect your domain / IP address
Keywords: spf check; email blocking; blacklist issues; phishing and spam email; email security settings; email stuck