Subscriptions Not Working

Since the upgrade, when folks sign up for my blog by email, they get a message on my website saying an email has been sent, but it never gets delivered. I contacted Bluehost and the analyst tells me that something is blocking the emails from being delivered (and no, they don’t go into spam and yes, this affects many providers)

This is troubling for me because I have a book launch coming out and I’m trying to get subscribers. They aren’t going to tell me if it doesn’t work (thankfully one person did)

I did all of the Jetpack troubleshooting/debug tips. The Like and Comment features are working, just not the email to click for confirmation. I hope you can help me because Jetpack is closed until the 24th and I don’t know where else to turn.

https://ww.wp.xz.cn/plugins/jetpack/