The best way to avoid this is to maintain a clean audience of engaged subscribers who look forward to receiving your email campaigns in their inboxes. If a subscribed contact marks your campaign as spam, Outlook's filters will likely send your next campaign to their junk folder. Spam filter settings change frequently, and they pay attention to subscriber actions, like opens and clicks.
In this article, you'll learn how to keep your campaigns out of Outlook's junk folder. Many factors impact Outlook's spam filtering settings, but there are a few things you can do to help your campaign skip the junk folder and arrive in the inbox.
Microsoft Outlook is a common email client that sometimes uses strict spam and junk filters.