RT2 - Mail problem

Hi,

I am trying to build up a new RT2 (2.0.9) system and having problems about
the mail function…

Altough I created many scrips (both Global and Queue specific) on the
system, it doesn’t send mails to recipients (some of them are local users
like root@localhost)…

The MTA is sendmail and I can send mails as root using sendmail from the
Linux shell.

The log file of RT2 is below… According to it something must be wrong with
permissions but what?
WebRT: No permission to view ticket ()WebRT: No permission to view ticket
()RT::Action::Notify=HASH(0x8ddad28): Could not send mail for
RT::Transaction=HASH(0x8d82540)
RT::Action::Notify=HASH(0x8e3ed20): Could not send mail for
RT::Transaction=HASH(0x8ed12bc)
RT::Action::Notify=HASH(0x8e00dd4): Could not send mail for
RT::Transaction=HASH(0x8eb309c)
RT::Action::Notify=HASH(0x8f1283c): Could not send mail for
RT::Transaction=HASH(0x8f18b70)
RT::Action::Notify=HASH(0x8dd2780): Could not send mail for
RT::Transaction=HASH(0x8ecadf4)
RT::Action::Autoreply=HASH(0x8d8a9f8): Could not send mail for
RT::Transaction=HASH(0x8f47944)

Any idea?

Thanks and best regards,

Serhat