The UI/UX of this app makes it easy even if you are not familiar with these types of tools, as long as someone can explain what they want done in plain English (or whatever language your user base speaks) then I'm sure we could get there! It's very intuitive once one gets used to how things work here; however some features like "Send" or "Mark Sent", etc., seem more difficult than necessary - but maybe my experience has just gotten better over time? We've had an issue where our domain was sending emails from spoofed addresses which were being marked by Gmail as spam due to DKIM issues. This tool allowed us to easily fix those problems without having to wait months while Google did so through regular channels.