@girish thanks for getting back on this. Had to playing around with the apache2 configuration and was finally able to figure out a way that works. To make a long story short: ProxyPreserveHost lead to a infinite loop. As soon as I removed it, things started working.

I've put together the final app here, maybe this is of use for someone else:
https://git.cloudron.io/mandelkind/proxy-app

Given the fact that I had to play around quite a bit, maybe we should add this to the app store as well? As a helper app, like the LAMP one.

@girish said in smtp_forward for Haraka?:

I am not sure if smtp_forward will work for your use case.

oh, that is indeed true. I stumbled upon something that suggested that this could be achieved with smtp_forward, but reading the page closer this indeed would not work as desired for me.

I'd rather want to avoid fetching mails from cloudron the the extra server. I'll have to think about some alternative approaches (maybe stick with my current relay setup and just make cloudron one of the relay targets).

Thanks for looking into this!

This is now implemented, will be part of 2.2 release

@El-Gavy Good question, thanks for asking. The Cloudron backend is FOSS and usable completely standalone and you can use it without the fontend or the Cloudron App Store. It's actually very similar to other projects like dokku, flynn, deis, kubernetes, docker etc in that regard. These projects are also "backend" software and have no web interface to do stuff. To make the backend "useful" out of the box, our app packages are also open source.

The Cloudron frontend (web interface) makes use of the REST API and is part of our Open core style business model. The Cloudron App Store is a service for 1-click deployment and update of curated apps which is also part of our business model.

IOW, I like to think of Cloudron frontend as building on an opensource components akin to products like Docker Data Center and Tectonic (which are closed source).

We have now added 2FA for the cloudron.io appstore website. We will release those changes in the coming days. We have to similar changes for Cloudron box code.