Please use a personal email. My email is ‘mail’ @ ‘my actual name’. It does not get more personal than that
But you can’t use emails starting with mail@, admin@, support@, info@, main@, etc.
Instead they advised me (3 times) to create a personal email on a service like Yahoo, Outlook, Gmail, Orange, etc
I imagine because it can’t be used to add additional junk characters to the address, they probably just strip them out before doing their string comparison
If they know this case. In other email services dots are usually not a junk characters.
For the same of checking uniqueness it’s probably fine to just ignore them. Yeah, it sucks if [email protected] and [email protected] can’t sign the same petition but outside of the big email services I imagine that kind of collision is pretty rare