If you’re not receiving test emails, the first thing you should do is:
Test emails can go missing for a few reasons:
Test emails will say TEST EMAIL before the Subject Line. If, under Type, you see Blocked, Bounced, or Deferred, you may need to check with your IT department to determine why those emails are being blocked.
It is not uncommon for temporary blocks to occur, either as a result of company security settings or something in the email that the server is interpreting as spammy. If you’re in a pinch and want to get a test through quickly, send a test email to a freemail email address like Gmail, AOL, Hotmail, or Yahoo. Otherwise, check in with your IT department to help troubleshoot why your test emails aren’t being delivered.