554 5.6.2 Conversion required and prohibited

Meaning

The message required conversion but it was prohibited.

Common causes

• Strict content policies.
• Incompatible formats.

How to fix

1. Send in standard format.

Example bounce

554 5.6.2 Conversion required and prohibited

Related codes

• 554 5.6.0 Other or undefined media error
• 554 5.6.1 Media not supported
• 554 5.6.3 Conversion required but not supported