Error creating user: Invalid mail address?

Trying to add a new user, when I do, NO MATTER WHAT EMAIL ADDRESS I PUT IN - I get “Error creating user: Invalid mail address”

Never had this problem before 10.0.1 (Current version 10.0.2 STABLE)

Scoured google for about two hours and found nothing. I need to add users!

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I have asked this same question and still have not been addressed. dont know WHERE to begin looking as I am new to this?! I will continue to try to solve.

I’m suffering the same mistake. the logs show that it has something to do with the variant: INTL_IDNA_VARIANT_UTS46

someone help???

Error PHP idn_to_ascii() expects parameter 3 to be long, string given at /home/vprnetbr/ 5 minutes ago
Error PHP Use of undefined constant INTL_IDNA_VARIANT_UTS46 - assumed ‘INTL_IDNA_VARIANT_UTS46’ at /home/vprnetbr/ 5 minutes ago

i’ve got the same problem with NC 13.1. :frowning: