Unable to send test email with Mailgun SMTP integration: 5.7.1 [xxx] Our system has detected that this message is 5.7.1 not RFC 5322 compliant: 5.7.1 ‘From’ header is missing. 5.7.1 To reduce the amount of spam sent to Gmail, this message has been 5.7.1 blocked. Please visit 5.7.1 Google Product Fo…

BUG with Mailgun integration

stephanie.chamblee April 13, 2021, 7:46pm 2

Thank you for reporting this and providing the details of the error!

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