Authentication セクションのUser プロパティとPassword プロパティに、有効な認証情報を設定する必要があります。E メールを取得するには、Server を指定する必要があります。E メールを送信するにはSMTPServer を指定する必要があります。

Deprecation notice for Gmail users

From May 30, 2022, Google no longer supports the use of third-party apps or devices which ask you to sign in to your Google Account using only your username and password. There are alternatives that allow your continued use of our Email drivers to connect to your Google account, which is why Gmail-specific columns, pseudo-columns, and stored procedures are only getting deprecated. We recommend you move to our Gmail drivers that offer more secure methods of authentication.