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Websites which have opinions about how the local part of an email address should be constructed can get in the sea.

It's entirely up to me what my localpart looks like and I'll put + signs in it if I want to.

I'm curious what the real rationale is here -- I mean, what difference does it really make to them?

in reply to Matthew Slowe

at least they were polite.

My biggest beef is when the box pops up and says INVALID EMAIL ADDRESS.

Well now, Mx Application Developer, let me introduce you to RFC822 and all subsequent revisions...

in reply to Matthew Slowe

@hub I just recently had to deal with a service that banned me using an email address at my personal domain but permitted the `+` when I used gmail. #infuriating #weird
in reply to Frederic Barthelemy

@fbartho and yeah the "everybody using gmail or hotmail". Microsoft does that for their clown services
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