A: Hi CatSumo,

Thanks for your interest in Mystrika.
As Mystrika is a cold email tool, we require users to bring their own email ids (that can be from any Email Service provider).

Our system has inbuilt DNS record checker, and bounce detection already.
So, if any email id on the warmup pool doesn't follow the best practice, system will detect it automatically, pause and send notification email to user about it to make a fix.
This ensures the quality of our warmup pool remains high.