What are the SMTP Prevent requirements regarding the SMTP message

Products

• Data Loss Prevention
• Data Loss Prevention Network Email

Issue/Introduction

What RFC does SMTP Prevent need to be in compliance with?

Resolution

SMTP Prevent acts as an RFC-2821 compliant SMTP proxy which in general extends RFC 821.
This means the generated email has to be compliant to RFC 2821 and subsequently RFC 821.

RFC 2821: Simple Mail Transfer Protocol (rfc-editor.org)

See as reference the documentation: Configuring the Network Prevent: Block SMTP Message action (broadcom.com)