I started looking into email alias services like SimpleLogin, Addy, etc. and I'm wondering if I really need it. Here's why:
My email provider has domain alias functionality. I can connect multiple domains to it. Let's say I'm ratm@domain1.com.
I can buy domain2.com and create an email address called anon@domain2.com. All emails (to both addresses) will land in the same inbox.
I can also create a catch-all email address so that I can create login unique emails for each service, like: lemmy@domain2.com, mastodon@domain2.com, etc.
So I guess my question is: What do I get from an email alias service that I'm not already getting from my email provider?
Is it maybe that I won't be able to reply from the service emails? Like, would I not be able to reply from lemmy@domain2.com since it's only a catch-all? So I can receive mail to it, but can't send from it?