Public MX IP address is blacklisted against "Truncate" spam list

Products

• Mail Security for Microsoft Exchange
• Email Security.cloud
• Messaging Gateway
• Messaging Gateway for Service Providers

Issue/Introduction

Mail is being rejected or dropped by other users using products that base spam reputation off of the "Truncate" spam list.

Resolution

The owners of this list are ARM Research Labs, LLC., a third party that are not affiliated with Symantec.

Any questions about this list would need to be directed to ARM Research Labs, LLC.