Domain Health

What happened

We have WorkOS and are sending out activation emails for our beta product. They activation email (with the link) ends up in spam. We've tried so many different combos (plain text vs. html, vs. no hyperlink), and it seems like anything with a link is getting bounced. I'm worried about our domain health and curious if there's a better way to diagnose the problem

Summary assembled by rule from the sources below

Sources