[FIX] Don't allow email violating white list addresses (#15339)
[FIX] Don't allow email violating white list addresses (#15339)


subesokun/Rocket.Chat,Sing-Li/Rocket.Chat,VoiSmart/Rocket.Chat,Sing-Li/Rocket.Chat,VoiSmart/Rocket.Chat,Sing-Li/Rocket.Chat,Sing-Li/Rocket.Chat,subesokun/Rocket.Chat,VoiSmart/Rocket.Chat,subesokun/Rocket.Chat,subesokun/Rocket.Chat