What version are you running?
What's the URL of the page this enhancement relates to, if any?
Describe the enhancement and the motivation for it.
Gmail apparently uses message-id as one of the fields it uses to "thread" a conversation. When using an AWS SES SMTP endpoint as the configured email server the emails appear as individual messages in Gmail rather than a threaded conversation. So if there are 100 reviews/comments, there are 100 corresponding messages in Gmail rather than a single thread.
What operating system are you using? What browser?
Ubuntu / Chrome / Gmail
Please provide any additional information below.
If RB could grab the SES message-id from the result of the smtp session instead of the internally generated message-id, then Gmail would be able to correctly thread messages.
These are examples of replaced message-id's in messages delivered via SES:
This is the SES endpoint we're using:
But they have many more in different AZs, etc...