user account not found

[Guza]

Hi i was setup ispcp config with domain scwlan.com.
I was create strumfovi.net domain too. I was something doing on my server and i was delete /tmp folder. Now i can't receive any mail. I have this errors:

Code:

Dec  2 23:09:30 scwlan postfix/local[23340]: 33A532225A7: to=<sasha@scwlan.com>, relay=local, delay=0.1, delays=0.07/0.02/0/0.01, dsn=5.1.1, status=bounced (unknown user: "sasha").

I can receive mail for another virtual domains but i can't on scwlan.com.
And one more thing when i add system user sasha without home folder i have this errors:

Code:

Dec  2 23:25:03 scwlan postfix/local[24603]: 31C6B2225A7: to=<sasha@scwlan.com>, relay=local, delay=72, delays=0.06/0.01/0/72, dsn=5.2.0, status=bounced (can't create user output file. Command output: procmail: Unable to treat as directory "/home/sasha/.maildir" procmail: Couldn't create "/home/sasha/.maildir" procmail: Unable to treat as directory "/home/sasha/.maildir" procmail: Lock failure on "/home/sasha/.maildir.lock" procmail: Error while writing to "/home/sasha/.maildir" )

He is trying to deliver mail to system user but i have defined that user in virtual maps.
Can someone help?
Is there way to uninstall ispcp from my gentoo and instal it again?
What is the best solution.
Thanks for replay