Hello @user39533 ,
I checked your latest few emails, and all of the tests came through on my end right away without issues. You may want to check and make sure your email program / network isn't spamming out or outright blocking the test sends, as that may require you to safelist our domains. Otherwise, I'd advise calling the Delivery team for further, advanced troubleshooting and assistance.
For your actual, live sendouts, I'd advise setting your account up for self-authentication since you have your own domain. Our Delivery team can assist with any questions regarding this functionality.
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