How to secure a [mail.domain.com] with an SSL certificate on Plesk

The default Plesk setup provides SSL/TLS encryption for the Plesk mail server using a hostname that can be configured by following this guide. What if users prefer to continue using [mail.domain.com] in their email client?  There is an alternative solution that can be implemented by following these steps in the Plesk panel:


1. Log into Plesk


2. Click Add Subdomain.



3. Specify the following:


- In the Subdomain name field, enter the segment of the address as [ mail ] that will be appended to the domain name of your main website.

- In the Document root field, leave it as the default path since it will be auto-generated, typically resulting in mail.example.com.



4. Click OK, and the new subdomain name [ mail.example.com ] will now appear in the list at the bottom of the screen.


5. Click "SSL/TLS Certificates" located under Security in the Dashboard for the new subdomain [ mail.example.com ]




6. Scroll to the bottom and Click "Install a free basic certificate provided by Let's Encrypt" under More options.


7. Specify the following:


- Email address : Fill in the email address to receive renewal notifications or warnings

- Tick to Secure the domain name just for [ mail.example.com ]


8. Click "Get it Free" and it will further install the Let's Encrypt SSL for [ mail.example.com ] 


9. Access to the Mail tab for the primary domain [ example.com ] and click "Mail Settings"



10. Scroll down to the option "SSL/TLS certificate for mail" and choose the SSL "Lets Encrypt mail.example.com"



11. Click "OK" and you are fine to proceed with the mailbox setup with SSL/TLS in the email client. Do make sure to using appropriate ports IMAP: 993, POP3: 995, SMTP: 465.


If you got any inquiries of facing any related issue during the setup, may send us an email at ( server-support@exabytes.my ) for advise and assistance.







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