I’ve been trying to set up an SMTP email/server with Cyber Panel on Contabo, but it says that email can’t be sent in Rainloop. I even used FluentSMTP in WordPress, but when I do a test email send, I got the following error message:
SMTP Error: Could not connect to SMTP host. Connection failed. stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages: error:14094438:SSL routines:ssl3_read_bytes:tlsv1 alert internal error
Can you please help me fix that?