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The "traditional" way to relay inbound mails is to have them delivered to a third party and then retrieve them via for example fetchmail or getmail. Fetchmail has an option called "multidrop" to deliver mails from a single pop3 mailbox into multiple target mailboxes.
Some years ago we had a prototype at work that would have been a hosted mail relay. A central server that accepts mails for licensed domains and then a small service on the customers system that establishes a websocket connecting to the central system and receive the actual mails through it (hence no need to open ports). Said connection would also have been used to relay outgoing mails. Sadly not enough commercial interest therefore it never left the prototype stage.
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The traditional way would still work. You work probably has a google apps, microsoft 365 subscription, or maybe even a measly webspace where they currently do their mail. Do isps still give our mailboxes? And from there you just need to run fetchmail somewhere where it can reach your cloudron (for example on the cloudron server itself).
A quick google brought up https://github.com/jeboehm/docker-fetchmail/
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@adison not sure what you are asking, are you asking to run email service on some other port? What should be built into cloudron? how would such a service work? if your IT won't let you open port 25, you cannot run an email service, there's nothing you can do.
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@adison not sure what you are asking, are you asking to run email service on some other port? What should be built into cloudron? how would such a service work? if your IT won't let you open port 25, you cannot run an email service, there's nothing you can do.
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There are other threads on this topic on the forum already.
See this thread for more:
https://forum.cloudron.io/topic/6046/proxy-email-via-vps/ -
@girish what i'm asking for is for the relay or a relay option to be builtin to cloudron itself.
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@adison sending is not a problem
