Summary

• When a particular email is sent to the mail handler, an issue is not created.
• When any other email is sent, the mail handler operates as anticipated.

Environment

• Jira Cloud

Diagnosis

• You will notice that emails from that specific email address are ignored.
• Upon reviewing the .eml file of the sent email, the Precedence of email is set to Bulk
  

Cause

• Mail handler settings are configured to disregard bulk:

Bulk: ignore

Solution

• Modify the mail precedence for the emails being sent.

Or

• Adjust the mail handler settings to accept 'bulk' emails.