Outlook webmail owa

Hi, I want to use MailStore to archive my mail from the webmail of my compagny.

I create new profile with the URL of the Webmail and login/password

When I test this, I get error 405 !

I activate the debug mode and I see in the log that it try to go to https://webmail/ews/
but my webmail is in https://webmail/owa/
Outlook Web Apps !

Is it normal ? How I can solve this error ?

Thanks for your help.