SMTP problem
Hello. I have a problem with the Mail service. I installed myVesta on Debian 12. I have a domain. the domain has a commercially purchased SSL certificate. in the panel it is connected correctly in the WEB section. website works as https. By logging in to webmail, I can receive and send messages without any problems. however, when using an email client, I can receive messages without any problems using port 993. Unfortunately, I cannot send any messages regardless of which port I use. I probably set something wrong or don't properly understand how the panel works. especially since it works perfectly via webmail. I'm just starting to get to know the panel. please tell me how to deal with it. Thank you