Is there support for sending emails with different priority than normal?
I wasn't been able to find such option in the readme/site and haven't looked through the code base yet.
Nodemailer does not have a build in support for priorities. Currently you would have to add these headers by yourself to the e-mail object.
For high priority:
or for low priority
Thanks @andris9 , if time permits will send a PR on the topic then ;)