Gmail
1、Click on: Profile picture
2、Select: Manage your Google account
3、Choose: Security.
4、Click on: Two-step verification, and enable two-step verification.
5、After enabling two-step verification, go to two-step verification. Search for the app-specific password and click to enter settings.
6、Select: App passwords
7、Enter the app password name, click on create password.
8、Copy the generated app-specific password.
9、Go back to the Gmail page, click on: Settings, select See all settings.
10、Select: Forwarding and POP/IMAP.
11、Enable: Enable IMAP.
12、Click Save.
13、Please return to the NXLink system and enter the app-specific password generated in step 8.