no such user

[LuKreme]

> On Feb 18, 2016, at 11:29, Mark Martinec <Mark.Martinec+amavis at ijs.si> wrote:
> 
> Try from a command line:
> 
> $ perl -le 'my($user,$pwd,$uid,$gid)=getpwnam("vscan"); print $user//"UNKNOWN"'

Prints UNKNOWN.

Now what?