How to Send/Receive Email with Microsoft Outlook (365/2019 or Later)
This page explains the steps to send and receive email with Windows Microsoft Outlook (Office365 version 2002/delivered February 2020).
How to receive
Receive
Click the Send/Receive All Folders icon 
in the top left.
How to send
New Email
Click the 新しいメール (= New Email) icon 
in the top left.
Send
A window for creating a new email will appear. After entering the address, subject and the main body, click the 送信 (= Send) icon 
.
If you are sending a test mail, enter your email address in the address field and send it to yourself.
If you successfully receive the test mail, you are done.