Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a Flask web application running behind gunicorn and Nginx. Nginx proxies any traffic to to the correct flask app.

I would very much like to use to process some incoming email. Running's example on my server and then sending an email to does not work as I intended. The server does not seem to receive anything but the email also does not bounce.

I'm missing something conceptually -- is there a DNS setting I need to configure or something I need to adjust with Nginx?

share|improve this question

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.