Pixelpioneer88
Hi, if you ask for aliases, you can create them from the website and admin dashboard or you can enable catchall , also for sending via alias you must be create first new identitie . I use catchall and for identities I create them in Thunderbird where is the send option for the email . They have a web client (open source) , but I don't use it and prefer thunderbird.
About videos or tutorials, there are not many it is true. I found Migadu from a few blogs that I follow, and after trying it out I liked it.
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Is not hard, and adding domains is also very easy, I manage two domains ,one personal and the other is for my wife, and for six months without any issue and using the micro plan . You have 30 days test period, you can move temporaly your's domains and test , if you don't like just back to your previous providor .