Many emails from GlowHost have characteristics of Spam (for example, when we send IP addresses, usernames, passwords and URLs) which vendors like Apple mail like to filter into the spam folder.
First of all, please ensure to mark messages from GlowHost as not spam:

Now, when email was marked as not spam, please add GlowHost email to contacts. This should help getting rid of emails being sent to spam.

That's all. Emails from GlowHost will be delivered to Inbox folder since now.