All of a sudden eM Client can’t connect to my server. It says check the settings. I have. they look right. What can I do?
Which version of eM Client? Which email provider?
Go to Menu > Tools > Accounts and click on the IMAP tab. Make sure the port is set to 993, and the security policy is Use SSL/TLS on special port (legacy).
If that does not help, disable your anti-virus/firewall application and then try again.