We can fix it by using a different email provider, rufunky.
I have found out that we have an ongoing issue about Gmail. Rest assured, our engineers are working to have this error a permanent fixed.
In the meantime, you can try a different webmail address either from Google or another provider.
I'd also recommend contacting our Phone Support team so you'll be added to the affected user's list. Let me guide you how:
We appreciate you for waiting while we're working to resolve this issue.
Has this issue been resolved yet? I am getting the same error when trying to set up my gmail with the recommended security enabled. If I set up without the security enabled, I get a different error saying "We were unable to connect to the email server for your email provider." Please help!
Thanks for joining us here, @christineg.
I've reviewed our system about the ongoing investigation (INV-38793) and found out it's still in progress. Our product engineers are working hard to resolve this.
As a workaround, you can follow the steps below.
First, you'll have to update your QuickBooks to the latest version. I'll guide you how.
Then, check your app preferences. There might be something's blocking the connection to your Google account.
If you still can't send emails, you can turn off the 2-Step Verification feature for your Gmail account.
Lastly, let's check your antivirus settings as it can also block the connection.
You'll need to search your antivirus provider's website for steps to allow port exceptions. Here are steps for Norton and McAfee.
If you use McAfee, open your antivirus program and check your Excluded Processes list. Add these names to the list so they can run freely:
You'll have to restart your computer to complete the repair. Then, open QuickBooks and email yourself a test transaction.
For further guidance in fixing this error, you can check out this article: Error: Could not connect to the email server.
If you have other concerns in the future, such as setting up advanced reports, online banking, manage reconciliation, transactions, import and export data lists, etc. feel free to visit our Help article page.
Feel free to tag me if you have additional questions regarding this, christineg. I'm always here to help. Have a great day!