I installed the 4.91 upgrade and it looks good. Created a self-signed certificate and that now works.
Everything on the mail server is working properly except it won't accept incoming smtp connections from gmail. It looks like an SSL issue, so I created a certificate request (which also works now, thank you) and purchased a certificate. The Mercury documentation does not quite line up with the certificate provided, and I am having trouble following the instructions. I think some sort of conversion or modification of the certificate may be required in some cases. Also, it is not clear if the old self-signed certificate can remain in place or needs to be revoked or deleted or what.
Could we get some clarity on exactly what the purchased certificate needs to look like, what type, where it should be installed, and any other special instruction?
I hate doing anything with certificates, they always seem to be trouble.