How to enable https for webmails from all registered domains?

[ericots]

I set up let's encrypt but rainloop doesn't recognize the certificate, how to solve?

[th23x]

Not sure this is directly related to RainLoop...for ensuring everybody connects to the server with the webmailer installed via HTTPS, I just added a .htaccess file in the root folder (where the index.php file is located) with the following content

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{HTTPS} !=on
RewriteRule ^(.*)$ https://webmail.yourdomain.de/$1 [L,R=302]
</IfModule>

Of course the part "webmail.yourdomain.de" has to be adapted to point to your (sub-)domain and path where the webmailer is accesible.

[fakhrulhilal]

I believe this's more like web server issue rather than rainloop issue. Could you please provide more detail: what web server used? Apache/Nginx/IIS/etc