I’ll have to take a look at this as a way to move off my homegrown serverless email on AWS. Doesn’t look like it has parity with being able to send email from many subsystems safely (with delay and veto)[1], but is pretty close on the receive side automation[2].

[1] https://github.com/mlhpdx/email-origin [2] https://github.com/mlhpdx/email-delivery