[Serusers] Problem at SUBSCRIBE and PUBLISH

Hi, I have some problems with the pa-module. I hope you can help me... If I want to send a Publish request to the SIP Express Router, it don't stores the status into the "presentity"-table. I get following lines into the log-file: /usr/sbin/ser[10124]: handle publish request /usr/sbin/ser[10124]: get_pres_uri: _puri=sip:PDA_User@domain.com /usr/sbin/ser[10124]: handle_publish -4- p_uri= p_uri.len=23 /usr/sbin/ser[10124]: handle_publish -5- presentity=0x4069e0b8 /usr/sbin/ser[10124]: publish_presentity: no tuple for PDA_User(a)domain.com /usr/sbin/ser[10124]: handle_publish -8- paerrno=0 /usr/sbin/ser[10124]: handled publish At SUBSCRIBE, the Server answers with OK, but he sends no NOTIFY to the User Agent. Following lines are in the log-file: /usr/sbin/ser[10113]: SUBSCRIBE received /usr/sbin/ser[10113]: handle subscribe request /usr/sbin/ser[10113]: handle_subscription() entered /usr/sbin/ser[10113]: get_pres_uri: _puri=sip:TestUser@domain.com /usr/sbin/ser[10113]: update_presentity() found watcher /usr/sbin/ser[10113]: handle_subscription about to return 1: w->event_package=1 w->accept=2 p->flags=4 w->flags=1 w=0x4069e318 /usr/sbin/ser[10113]: handled subscription /usr/sbin/ser[10135]: timer_presentity: _p=0x4069e118 TestUser(a)domain.com flags=4 watchers=0x4069e318 /usr/sbin/ser[10135]: w=0x4069e318 PDA_User@domain.com<sip:PDA_User@domain.com> flags=1 /usr/sbin/ser[10135]: notifying PDA_User(a)domain.com _p->flags=4 _w->event_package=1 _w->accept=2 _w->status=1 /usr/sbin/ser[10135]: send_pidf_notify /usr/sbin/ser[10135]: ERROR: mk_proxy: could not resolve hostname: "domain.com" /usr/sbin/ser[10135]: ERROR: uri2proxy: bad host name in URI <sip:PDA_User@domain.com> /usr/sbin/ser[10135]: ERROR: uri2sock: Can't create a dst proxy /usr/sbin/ser[10135]: t_uac: no socket found best regards, Harisson