provide more details on the hashmail mailbox proxy config and operation

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https://docs.lightning.engineering/lightning-network-tools/lightning-terminal/mailbox shows the config options required to setup the hashmail mailbox proxy.

Wondering, why is port 443 recommended? Is it required to use https for this to be secure? If this is just a dumb proxy, it seems like port 80 could work and then no SSL certificate would be required? I thought a big reason for Lightning Node Connect was to get rid of the need for SSL certificates, yet it seems like aperture and the proxy may be adding them back in.

Also, can the hashmail mailbox proxy be used in addition to the other features of aperture in the same instance? Wondering what http path the hashmail proxy runs under so that if I want to also use aperture for doing the Lightning Service Authentication Token Reverse Proxy (that it is mainly designed for), I can avoid path conflicts.

Start with the linked hashmail mailbox documentation and review its configuration options alongside the described Aperture reverse-proxy use case. Clarify whether port 443 and HTTPS are required, whether hashmail can share an Aperture instance, and which HTTP path it uses; the documentation is done when these questions are answered without path or security ambiguity.

Written by the indexing model from the issue text.