[Postfix/Dovecot] not receiving mail.

[HooGLaNDeR]

Hello all, when i'm tailing my mailserver as soon as i receive mail i see the following errors.
Can someone help me out?

Feb 9 21:07:00 mail postfix/smtpd[5010]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled
Feb 9 21:07:00 mail postfix/smtpd[5010]: connect from hs-out-0708.google.com[64.233.178.248]
Feb 9 21:07:01 mail postfix/smtpd[5010]: E1AA819CE14: client=hs-out-0708.google.com[64.233.178.248]
Feb 9 21:07:02 mail postfix/cleanup[5014]: E1AA819CE14: message-id=<748566e80802091206u68b2507dg550035905bc7212@mail.g mail.com>
Feb 9 21:07:02 mail postfix/qmgr[5005]: E1AA819CE14: from=<xxx@xxx.xxx>, size=1768, nrcpt=1 (queue active)
Feb 9 21:07:02 mail dovecot: auth-worker(default): sql(xxx@xxx.xx): User query failed: Table 'mailserver.users' doesn't exist
Feb 9 21:07:02 mail postfix/pipe[5015]: E1AA819CE14: to=<xxx@xxx.xx>, relay=dovecot, delay=0.85, delays=0.74/0.06/0/0.05, dsn=5.3.0, status=bounced (Command died with status 89: "/usr/lib/dovecot/deliver")
Feb 9 21:07:02 mail postfix/cleanup[5014]: 4114019CE18: message-id=<20080209200702.4114019CE18@mail.1337.ms>
Feb 9 21:07:02 mail postfix/bounce[5017]: E1AA819CE14: sender non-delivery notification: 4114019CE18
Feb 9 21:07:02 mail postfix/qmgr[5005]: E1AA819CE14: removed
Feb 9 21:07:02 mail postfix/qmgr[5005]: 4114019CE18: from=<>, size=3507, nrcpt=1 (queue active)
Feb 9 21:07:03 mail postfix/smtp[5018]: 4114019CE18: to=<xxxx@xxx.xxx>, relay=gmail-smtp-in.l.google.com[64.233.183.27]:25, delay=0.82, delays=0.02/0.02/0.02/0.75, dsn=2.0.0, status=sent (250 2.0.0 OK 1202587618 f7si466957nfh.19)
Feb 9 21:07:03 mail postfix/qmgr[5005]: 4114019CE18: removed
Feb 9 21:07:32 mail postfix/smtpd[5010]: disconnect from hs-out-0708.google.com[64.233.178.248]


Thanks in advance....

[thecaoticone]

I am not sure what set-up you are running, but going on the errors, here is what I see.

The first error I see is usually means the "alias_maps =" is not set correctly:

warning: dict_nis_init: NIS domain name not set - NIS lookups disabled
The second error I see seems to be saying the you have a table missing from the database.

Table 'mailserver.users' doesn't exist
Check your postfix main.cf file to ensure the "alias_maps =" are set correctly and then make sure your 'mailserver.users' table exist.