Since the upgrade to 8.2 I have been unable to send or receive email from the eM Client. I continually get a message that it might indicate server compatibility. No settings on the client have been changed and when I run diagnostics within the client bot IMAP and SMTP check out OK. Everything worked great until the upgrade. Client is on Windows 10 64-bit machine
What are your email acct settings.
Obviously don’t show your account name and pass.
Also are you running any optional Firewalls or VPN’s ? If you are try temporarily disabling those to test.
Are you using any antivirus programs?