What's that thing called where I can input email#sometopic@example.com where it is either still sent to the main inbox or sent to a folder sometopic, depending on server settings? I am having trouble searching for it, though both gmail and other email providers observe it.
@lucifargundam Wording seems to be my challenge here. The point is that I can send mail to email#sometopic@example.com and it is received by email@example.com and then, possibly if imap has been set up this way, put in to a folder "sometopic". Various email providers support this, and it's an easy way to keep track of logins for types of sites, but I can't remember what this feature is called.