Hello I have a latest 3.2.1 ispconfig (installed 3.2 beta and upgraded to release and then to 3.2.1). Postfix / dovecot on CentOS 8. Can't use SSL for POP3 and IMAP connections on Windows 7 clients's machines. SSL SMTP on 465 port works. There should be something simple tick in the config to support earlier clients... Did not found that in the forum archives, but I think it was discussed before, please help me to locate the info. Thanks.
For a protocol that came out 12 years ago (TLS1.2), it's sure strange that Windows 7 doesn't support it out of the box, but see https://docs.microsoft.com/en-us/ar...bling-tls-1-1-and-1-2-in-outlook-on-windows-7 for how to enable it.
I'm sorry, I did not asked correctly. I know that there is a way to fix Windows 7 PC, but I'm looking for a some HOWTO where is written how to support an obsolete protocols needed for Windows 7 clients on the server.
You can change Code: ssl_min_protocol = TLSv1.2 to Code: ssl_min_protocol = TLSv1.0 in /etc/dovecot/dovecot.conf. You might have to change the ciphers aswell - not sure.
