Requested action aborted (4)

Products

• Email Security.cloud

Issue/Introduction

You have received a NDR bounce back stating one of the 2 below error messages.

• 550 Requested action aborted (4)
• 450 Requested action aborted (4)

Resolution

The format of your message did not comply with RFC-2822

Contact your IT administrator or ISP. If the problem persists, contact the recipient party.