[Get Exchange Mail Message] Error 407 Proxy Authentication Required on UiPath Robot

Hi all,

I have a problem with Get Exchange Mail Message activity: when it is running, it get a message error (see topic object). If I log in to the webmail manually, the same error doesn’t appear. So, the properties are correct.

I have no problems with Send Exchange Mail Message activity (the same properties -server address, username, password- are setting up).

Do you have any idea?
Thanks in advance. Regards