Here's what I see in the log files after enabling diagnostic logging in Outlook 2016:

IMAP: 02:55:21 [rx] 0c1x NO [ALERT] Please log in via your web browser: https://support.google.com/mail/accounts/answer/78754 (Failure)
IMAP: 02:55:21 [db] ERROR: "Allow less secure applications is disabled for your account.", hr=0x800CCCE6
IMAP: 02:55:21 [db] Connection to 'imap.gmail.com' closed.

And here’s a screenshot from relevant part of my google account settings, in their web interface:

enter image description here

I only have a single google account.

Is there a way to fix IMAP integration? I really dislike their web interface.

Thanks in advance!

Update: The web interface says “Use your phone to sign in: Off” and “2-Step Verification: Off”

The settings seem to be correct, and I have not changed them for years. Yesterday it stopped working out of the blue.

Outlook’s diagnostic log says it connects OK to the server, here's selected messages:

Connecting to 'imap.gmail.com' on port 993.
srv_name = "imap.gmail.com" srv_addr =
OK Gimap ready for requests
LOGIN command sent
  • Do you have 2FA enabled? Are you using the proper settings. After you confirm the settings, if you still can’t connect, I suggest contacting Google. – Ramhound Feb 20 '19 at 2:24
  • I would also enable/disable switch the insecure application option – Ramhound Feb 20 '19 at 2:30
  • Have you downloaded the maximum allowed per day by chance? – Ramhound Feb 20 '19 at 2:43
  • @Ramhound The last e-mail downloaded by Outlook was 30 hours ago. The first one in 2004. I hope they don’t have hidden lifetime traffic limits… – Soonts Feb 20 '19 at 2:46
  • It’s a certain amount of bandwidth per day. I would create a second Google account, to see if that account works, if it does I would contact Google for assistance – Ramhound Feb 20 '19 at 2:48

It would appear that Google has changed it's security measures around 3rd party applications connecting to its service.

To resolve this you will need to do the following:

Activate 2-Step Verification if not already activated

Navigate to https://myaccount.google.com in a browser and sign in using your google account details.

After signing in click "Security" tab on the left, then click 2-Step Verification and follow the instructions to configure.

Once 2-Step Verification is configured this will allow you to configure app password's via the following method:

Go to your Google Account.

On the left navigation panel, click Security.

On the Signing in to Google panel, click App passwords.

Note: If you can't get to the page, 2-Step Verification is: Not set up for your account or is Set up for security keys only

At the bottom, click Select app and choose the app you’re using.

Click Select device and choose the device you’re using.

Click Generate.

Follow the instructions to enter the App password (the 16 character code in the yellow bar) on your device.

Click Done.

Once you have completed this you should be able to use the app password you have created to log into your gmail account in outlook. (May take 5 minutes or so before outlook accepts the password.)

Answer was found from this source - https://productforums.google.com/forum/#!msg/gmail-fr/67kIlDcTSI4/eU4Oia1oBAAJ

Instructions for creating an app password on your google account found here - https://support.google.com/accounts/answer/185833?vid=0-40571905225-1518162545847

Please also see guidance from Microsoft here under "Outlook won't accept my password" - https://support.office.com/en-us/article/add-a-gmail-account-to-outlook-70191667-9c52-4581-990e-e30318c2c081

Hopefully this helps

| improve this answer | |
  • Thank you very much, it worked! At some point I even thought google did that on purpose to push users to their crappy web sites filled with ads and tracking. – Soonts Feb 20 '19 at 19:59

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