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I used the (gmail only?) feature of adding a plus sign in my email for filtering purposes like so:
myemail+job@gmail.com
Registration with that email on a website went great but trying to sign in again returns an "account not found" error. Part of the url looks like this:
...login/?email=myemail+job@gmail.com...
Any suggestions? Or is this something that has to be remedied by a web admin?