Directadmin fixing IMAP and SMTP SSL

I am in need of a freelancer who can help me fix the SSL certificate error that I am experiencing with the IMAP and SMTP SSL on Directadmin. Here are the details of the project:

Specific Issues:
- SSL certificate error preventing connection to the mail server

Requirements:
- Experience in fixing SSL certificate errors on Directadmin
- Knowledge of IMAP and SMTP protocols
- Familiarity with server environments, particularly VPS
- Root access to the server is available

If you have the necessary skills and expertise, please bid on this project. Your assistance is greatly appreciated.