How do tickets become suspended or flagged as spam?

Question

 How do tickets become suspended or flagged as spam?

Answer 

Email sent to Zendesk Support can be suspended or rejected, but they are not necessarily spam, see What does "Detected as spam" mean?

Some of the most common reasons for suspension include:

• The sender is not allowed to create or update a ticket
• The sender is not a person
• The email failed DMARC authentication

For more information about the causes of suspension, see Causes of suspended tickets.

For complete instructions about managing suspended tickets, see Understanding and managing suspended tickets.