Webmin HTTPS and mails configuration

I am looking for a freelancer who can configure my Webmin HTTPS and email server to ensure secure communication. For very skilled people this is 30/45 minutes job.

My project requirements are as follows:

SSL Certificate Setup
- I have already installed an SSL certificate on my website and need the freelancer to configure it on Webmin HTTPS. Currently, when I access every page of my website a browser warning appears close to the URL bar saying that the site is unsafe.

Mail Configuration
SERVER SIDE
- i need a short user manual explaining (1-2 pages possibly with screenshots) how to configure new email users of the website
- how to set the POP or IMAP addresses
- I need as an example a configuration of one account, for instance, contact at mywebsite.com
- the new users shall access just their email addresses through their email client (for instance outlook) or web main, not to webmin admin panel.
- I need the chance to configure the client both with SMTP, POP3, or IMAP.
- I have already installed in webmin Postfix and Dovecot
- I need to be installed and configured a web mail service to let user access their email also without an installed email client
CLIENT SIDE
- I need a manual where is written how to configure the client in both the above cases

Ideal Skills and Experience
- Experience in Webmin HTTPS and SSL certificate configuration
- Experience with Apache and Linux
- Expertise in mail configuration, especially with Outlook and POP3 client side and Postfix and Dovecot for server side
- Strong communication skills to ensure smooth collaboration throughout the project.