If a domain has SNI disabled from IIS > Site > example.com > Bindings, Plesk reverts it back to Enabled when it pushes changes to IIS.

It would be nice to have an option in the domain's SSL settings to turn ON/OFF SNI and lock it.

This is all about security, it's simply not a fully developed product without this facility and I am hugely shocked and surprised it doesn't already exist.

Please add Mailman support to Let's Encrypt.

Ideally, one could issue either a certificate directly for lists.domain.com or a wildcard certificate for *.domain.com.

Furthermore, a secure connection should be enforceable.

Thanks!

Currently, when giving users the ability to access SSL to add their own certificates, they can also view Let's Encrypt and create free certificates. It would be useful to allow users access to add their own certificates without giving them access to use Let's Encrypt and there is currently no way to do this.

Additionally, any users logging in to manage their domains can see Let's Encrypt (although cannot use it) and we keep getting asked about it, so it would be useful to hide this off for users unless they specifically need access.

I would like to be able to acquire SSL certificate of Let's Encrypt for subdomain of www.
For example
If example.com is another server, SSL certificate of www.example.com can not be acquired by Let's encrypt
I want you to be able to do it.

SSL Certificate changes are currently not logged in Action Log in any way. Such changes should be logged as they are part of hosting settings.
Yet, they should reflect the certificate details (e.g. "Certificate A was changed to certificate B").

If you have a .pfx file containing Certificate, Private Key and CA certificate, allow to upload that container with one step.

This way, a customer doesnt have to use tools like openssl to extract and convert the certificate themselves.

.pfx is the preferred format on windows plattforms ,e.g. when you export a certificate from another IIS-based server.

We have a setup where webmail.example.com and example.com point to another server than our Plesk instance. Because of this we can't enable Let's Encrypt on Webmail since the CSR contains webmail.example.com and example.com.
So I hope you consider adding an option to only create webmail.example.com (without SAN example.com)