GAE custom domain but with SMTP control

Question

I understand that in order to link my domain to my GAE application I need to setup Google Apps according to this.

But Google Apps seems to take control of SMTP and email addresses. I need to have my own SMTP server in GCS, which is working perfectly right now using the static ip like someuser@xx.xx.xx.xx

What I need is to be able to enter my GAE web application thru mydomain.com but at the same time being able to receive anyuser@mydomain.com at my SMTP instance at GCS. Is it possible?

Answer 1

Your email settings are determined by your registrar, not by Google Apps. If you don't want to use Gmail as your mail server, you simply keep your DNS records unchanged, as Xavier correctly suggested.