Setting up a proxy for SMTP mail relay

[#1]

Is it possible to setup a basic proxy on Edge that can connect to an internal, corporate SMTP relay to allow other internal/external servers to centrally connect to a corporate SMTP/Exchange relay? This isn't specifically for the Edge UI or the Dev Portal to send emails, rather for other servers that have a need to send email to be able to send it through a central control point (i.e. Edge) to maintain access and to reduce admin overhead with white listing/firewall rules when granting system access to a central SMTP relay.

[jparagon]

Edge supports HTTP, HTTPS, TCP, and outbound MQTT (as far as I know). Unless you have a service using one of those protocols or a way of tunneling SMTP through HTTP I don't think you would have much luck.

In this case you may look at one of the smtp proxies out there or configure nginx as one and apply security policies / rules. For cloud & global distribution I would have a look at SendGrid.

[#3]

If Edge supports TCP connections and can do Java callouts, wouldn't an SMTP proxy still be possible somehow? I'd really appreciate it if some more details can be provided here.

[#4]

Thank you so much! Was having the same problem with the proxy server, well, that time spotted your hint pretty quickly. Solved the problem with my proxy server rather quickly