554 5.6.1 Media not supported

Meaning

The media type of the message is not supported.

Common causes

• Unsupported attachment type.
• Blocked MIME type.

How to fix

1. Remove unsupported attachments.

Example bounce

554 5.6.1 Media not supported

Related codes

• 554 5.6.0 Other or undefined media error
• 554 5.6.2 Conversion required and prohibited
• 554 5.6.3 Conversion required but not supported