Hi there, for starters, please bypass Microsoft Outlook in the app list inside blokada and reboot your device and see if that solved your issue.
Also, AdAway is already included in both Energized Blu and Jerryn’s GoodBye Ads so you can disable that 
Or try adding “Firebase” once you find it in your host log to the whitelist as it may be the culprit for not getting notifications in your app anymore.