Hi there!
I've been using Ispconfig 2 for the 2 sites more or less succesfully and I decided to test Ispconfig3. Besides the lack of manuals there is problem with email account creation - I can't create account
a@domain.com, it says - Email address is invalid. It worked in Ispconfig2 but now not anymore. The same thing when I try to create alias for email
name@domain.com -
n@domain.com, the same error. I used the email alias in previous version of ispconfig.
Why it is impossible to create email address with one letter before @ ?

And where can I change the email validation rule?
Thanks!
Update!
I inserted the alias entry in the database directly but it's not very convenient...