Private Mail Servers use roundcube mail client to manage emails. Users may need to update their password. Below is the procedure on how to do so:
1.Login to Webmail.
2. Click Settings Icon

3. Click Password and type in your Old and New Passwords as promoted

4. Click Save
I have lot my autofill password and cannot log into my email on roundcube.
Hello,
If you are Cpanel admin, update your email password from cpanel under email accounts.
Alternatively, reset email password or ask admin to reset for you.