Mail setting error

I operate it according to a document, but the following error log appears.

How can you evade it?

86350-スクリーンショット-2017-11-24-101956.png

It occurs when you do the procedure "In the New Destination dialog box, enter the name Session and type Mail and choose OK."

https://help.sap.com/viewer/cca91383641e40ffbe03bdc78f00f681/Cloud/en-US/e70a574cbb57101494a781920e3c9d64.html