Hello @MyaS90 ,
We do have some tips and helpful articles on how to keep out of filters such as these. The first thing we want to do is avoid sending image- only email campaigns! There are a lot of adjustments to content that we can make to improve our overall deliverability rate! You can find a lot of those tips and tricks outlined here.
The last thing we would recommend is setting up a campaign email authentication email which can be found under My Account!
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