Hello @user361595 ,
When I test sent the email, it came through right away for my personal and work addresses. Based on the reporting of your live send "test," the bounces were explicitly blocked types. This generally means that the ISP or email program simply refused to accept the email, either because of its content, lack of authentication, or some other element
Generally the best ways to address this is to 1) make sure if you're sending the emails internally that you have our domains safelisted, and 2) make sure you have self-authentication set up for your account if you do decide to upgrade to a paid one.
If you need additional insight, or more specialized support regarding these processes and your emails' overall deliveries, I'd advise calling our Delivery team directly.
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