We need to run SMTP/IMAP like it’s 1998. We are using the product in conjunction with amateur (ham) radio, and when we transmit data over ham radio frequencies, we cannot use encryption. Even TLS on the WebUI would be nice to disable if we can. But the priority would be SMTP/IMAP all plaintext. I initially installed Mailcow last night, and I see you can disable a TLS requirement for domains, but still got some TLS-related errors. What more can be done, or can the components even run completely without encryption?
Any hints? I realize this is the exact opposite of the direction and best practice.