I do the same thing as you but with owning the root domain, so no need for a +. In other words, I would use spectrum@example.com for this (i have a catchall ru

I do the same thing as you but with owning the root domain, so no need for a +. In other words, I would use spectrum@example.com for this (i have a catchall rule so it forwards to the same place). I’ve never had an email validation issue and this actually makes more things validate, since some websites require you to enter a “business email” and this passes that (I think they basically filter out Gmail and others).