If you have sent yourself a test and it has not arrived in your inbox, there are a few things that you can check.
1. Check your Junk mail box to ensure it hasn’t gone into there
2. Send a test to an email address outside of you network such as Gmail, Hotmail or Yahoo. If the test comes through to you there, then speak to your IT team, and ask them to check the email logs for your network.
3. After checking the above and you still don’t have a test after about 10-15 minutes please contact the support team with the instance you are working in and the name of the email design/campaign.