We've noticed that some of our authentication-related emails are being flagged as spam by GMail (e.g. password reset).
* We're using our own domain name
* We're using Mailgun to send the messages
* SPF and DKIM is set up correctly
* The GMail message implies the risk factor is the content of the emails itself: "Similar messages were used to steal people's personal information. Avoid clicking links, downloading attachments or replying with personal information"
Our next move, therefore, will be to change the content of the message so that it doesn't resemble the default ST template. Was wondering if other people had faced something similar and had success with a different approach?