IMAP issues port 993

Hi, I would like to report as I am experiencing an issue, where it is a bit complex with IMAP funcionality.
However, I can see SMTP & IMAP protocols from my end are working okay and are fetch to my Minthcm, but it is something where I can get it work and as is to Sync all emails are in each individual folder. When I am going to “TIME MANAGEMENT” >> Emails, I can see clearly selected the folders are from my current mailbox I assigned via IMAP Protocol, but unable to see any Emails. I tried the funcionality Repair : “Sync Inbound Emails” but not succeed. Is it there any recommendation? Is it actually a bug issue? Or Perhaps is something what maybe I missed out? Kindly I would be appreciate if you having this issue before or where should I check first for to resolve this. My current deployment is for my own business and I would like the employers from HR to be able to see the emails coming through Minthcm and reply at the same time to candidates, internal employees or email campaings. Thanks.