Hello @DanielleM227 ,
Here are some general best practices for delivery.
Delivery can have a lot of variables, from elements on our side, on your side, on the recipient's side, and in their email system company's side. It's also a generally good idea to set up additional authentication for your emails, particularly self-authentication since you have your own domain. Self-authentication will be especially useful (or even necessary) for some domains when sending out and for delivering internal emails.
I'd also recommend making sure our domains are safelisted in your network as well.
If you're wanting more in-depth, specialized insight on your current deliverability, it'd be worth speaking with one of our Delivery agents.
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