a bug?

[Marcin Jaskowiak]

Hi,

I've just installed qmail on my system and i have little trouble with
aliases...
When i use alias like marc ir johndoe everything is ok (.qmail-johndoe),
but when i'm trying to set marcin.jaskowiak alias the system (log)
response that there is no such user (.qmail-marcin.jaskowiak).
Anyone has done such a things? 

Thanks,
Marcin Jaskowiak