The actual email sending / receiving part is handled by Amazon SES here. Similarly you could use Sendgrid in that place. This project is a wrapper around those.

The actual email sending / receiving part is handled by Amazon SES here. Similarly you could use Sendgrid in that place. This project is a wrapper around those. It also doesn't aim to provide an email inbox - this is for programmatic handling of email. Now the interesting part to me is using the email address local part to create an email address hierarchy upon receipt. This project stores incoming emails to S3 and the '+' in the email address indicates subfolders from left to right. That's a very creative way to organize emails for processing.