When trying to setup the NextCloud email client, the process fails with the following error:
Error while creating the account: Creating account failed: Server does not support TLS connections.
In manual configuration IMAP host is set to port 993 with SSL/TLS and SMTP is set to port 587 with STARTTLS as per documentation.
On the server, both ports 993 and 587 are open with netstat output
tcp6 0 0 :::993 :::* LISTEN
tcp6 0 0 :::587 :::* LISTEN
In reveiwing the issue, I discovered NextCloud doesn't support any thing but TLS1, does Cloudron only use TLS1.2?