Handling third-party Blacklisting for Email Security.cloud Domains

Products

• Email Security.cloud

Issue/Introduction

- Email delivery fails with errors indicating the sender's domain or IP is blacklisted.
- Sending logs may show successful handoff from the customer's environment, but the recipient's mail server rejects the connection.

Environment

 Email Security Cloud

Resolution

Third-party entities are not controlled or managed by Email Security Cloud Services, and we are unable to submit manual requests to remove specific domains or subnets from this blacklist.

The administrator of the affected domain should contact the third-party provider directly to request delisting.