I've installed the subscribe by email plugin

Hi, I've installed the subscribe by email plugin and I'm working on customizing it. The test emails on the mail template settings page are not coming to my email. I've tried 5 email addresses to no avail. They are also not in the spam folder.

I've added subscribers, and those emails do arrive. I'd like to be able to receive the test email also.

Thanks for any help on this.