Emails Won't Send

This has probably been addressed before multiple times, but all of the forums, topics, posts are not visible to me. It says “No topics were found here!” across all the Forums.

I can’t get emails to send in Mautic. I have a free account with Mautic where they send the emails through their mail servers because I don’t know much about the technical side of things.

When I send emails to a contact, it says that it sent in the activity log. But it is never received by the person I mailed to. Not even in their spam folders. I’ve tested this on my own email addresses and I don’t receive a thing.

Any suggestions would be appreciated. Thank you.