"Bandwidth Limit Exceeded" may appear on your connected Gmail account when the account is over its limit and we are not able to connect to retrieve messages.
Gmail provides 1250mb of bandwidth per day, if you exceed this, you may be locked out of your Gmail account.
The Google "bandwidth limit exceeded" should be a one day/24 hour event. For more information, please check out Google's Support Center: Bandwidth Limits
If you have any questions, please write us at firstname.lastname@example.org, initiate a chat from this FAQ, or join one of our Nimble Onboarding and Best Practices sessions, held every weekday at 9 AM PT.