is he/she/whatever planning not to sell the program anymore? I mean… TLS 1.0 is archeological (1999) and deprecated, 1.2 is not that young (2008) and the recent 1.3 is less than 4 years old, so it will take 2 years to get traction but it certainly will, according to the current international situation. Whatever. NMP.
Mr Denis Pollini had an issue with sending messages from old Synology DSM5-powered NAS to Nethserver.
solved by allowing non-encrypted relay.
If the connecition goes on a private LAN or via VPN I don’t think the solution applied here (encryption disabled) is a good one.