Test email sending

Hello community,

Is there any way how to check what happened with test emails? 

I'm wondering because I have a strange situation when for one template I successfully receive message while for another I don't. And my intention is to somehow check whether test email was actually sent or it wasn't due to, in particular, some internal errors in template (I imported the template as a html code, maybe there are some invalid tags that doesn't allow to create message properly)