Mail Service Problem error message issue

Hi Its Jennie here,
Hopping to get some help on an issue of sending mails via other then company services.
I as a client, when try to send email ,I am asked after entering the email address and my message to enter server name and then to select mail protocol I enter all information correctly. But when I select MAPI and click next it responds back with the a message that you can see in the image.
I don’t understand that why is this configuration not getting done. I mean I contacted my admin and asked him to sort this issue out and he said that its all well at this side and he has enabled MAPI, then why do I get this issue on my side.
Please if anyone had this experience before or recently please reply me here with the solution.

Notification Configuration
V-19-310-3-9
To enable MAPI Mail you must enter a valid mail server name.
