Yeah, I’ve seen this happen too. BI updates sometimes fix one thing and break another—it’s frustrating. Reverting to 5.5.5.9 was a good call since it’s clearly an issue with 5.5.5.10. You might want to reset the overlay settings to defaults and reconfigure them—sometimes updates mess with how those ...

Hey, I ran into the same issue after Microsoft's changes. The thing is, they've disabled basic authentication for their SMTP services, so now you need to use OAuth2. Unfortunately, Blue Iris doesn't natively support OAuth2 at the moment (at least not in version 5.x). You can try this workaround: Swi...