Access any user account with a single Master Password
Master password allows system administrator to log into any user account, without knowing the account password.
Also, it allows developers to authenticate as any user in terms of Web API.
The feature is available as MailMasterPassword module and it's supported starting from WebMail Pro version 8.3.
With the feature enabled, it is possible to log into any account by supplying master password instead of account password. That will work for web access as well as API access.
Enable the module by setting Disabled to false in data/settings/modules/MailMasterPassword.config.json
file.
After that, you'll get "Master Password" section activated in admin area, and you can supply a master password there.