Sign in using app passwords

An app password is a 16-digit passcode that gives a non-Google app or device permission to access your Google Account. App passwords can only be used with accounts that have 2-Step Verification turned on.

When to use app passwords

To help keep your account secure, use 'Sign in with Google' to connect apps to your Google Account. If the app that you’re using doesn’t offer this option, you can either:

Use app passwords to connect to your Google Account
Switch to a more secure app

Create and use app passwords

Note: If you use 2-Step-Verification and are seeing a 'password incorrect' error when trying to access your Google Account, an app password may solve the problem.

Go to your Google Account.
On the left navigation panel, choose Security.
On the 'Signing in to Google' panel, choose App passwords. If you don’t see this option:
- 2-Step Verification is not set up for your account
- 2-Step Verification is set up for security keys only
- Your account is through work, school or other organisation
- You’ve turned on Advanced Protection for your account
At the bottom, choose Select app and choose the app that you’re using.
Choose Select device and choose the device that you're using.
Choose Generate.
Follow the instructions to enter the app password. The app password is the 16-character code in the yellow bar on your device.
Choose Done.

Most of the time, you’ll only have to enter an app password once per app or device, so don’t worry about memorising it.

You need create a password and then use it to login to IMAP mail with it. Please try the sensitivity setting. I thought the lower the number the lower the sensitivity.

3. Please check Gmail through other email platforms

Set up IMAP and change your SMTP settings to read Gmail messages in other mail clients, like Microsoft Outlook and Apple Mail. When you use IMAP, you can read your Gmail messages on multiple devices, and messages are synced in real time. You can also read Gmail messages using POP.

Important: To avoid temporarily locking yourself out of your account, make sure you don't exceed 2500 MB per day for IMAP downloads and 500 MB per day for IMAP uploads. If you're setting up a single IMAP account on multiple computers, try taking a break between each setup.

Step 1: Check that IMAP is turned on

On your computer, open Gmail.
In the top right, click Settings See all settings.
Click the Forwarding and POP/IMAP tab.
In the "IMAP access" section, select Enable IMAP.
Click Save Changes.

Step 2: Change SMTP & other settings in your email client

Use the table below to update your client with the correct information. For help updating your settings, search your email client's Help Center for instructions on setting up IMAP.

Incoming Mail (IMAP) Server	imap.gmail.com Requires SSL: Yes Port: 993
Outgoing Mail (SMTP) Server	smtp.gmail.com Requires SSL: Yes Requires TLS: Yes (if available) Requires Authentication: Yes Port for SSL: 465 Port for TLS/STARTTLS: 587
Full Name or Display Name	Your name
Account Name, User name, or Email address	Your full email address
Password	Your Gmail password