There are two types of emails you receive from AdNabu. Bimonthly emails with curated content and daily/weekly/monthly emails with your AdWords account performance reports.
To stop receiving bimonthly emails with curated content, you can unsubscribe from our list. To unsubscribe, please hit the “unsubscribe” button from the footer of the emails you receive. Or, you can drop us an email for the same.
To stop receiving daily/weekly/monthly account performance reports, pause existing report jobs from the reports page of AdNabu dashboard.
Learn how to unlink your AdWords account from AdNabu.