List will send to @mydomain only.

Hello 
This is probably a Qmail setup problem but my server admin had to move servers & just now I'm using PHPList for the first time since we moved. He also is working on this problem...
_________________________________________
Everything in PHPList looks & seems to work properly.
EG: when sending test messages or actual list messages the PHPList admin panel reports success in both test & list emailing out..
But only emails to *@mydomain arrive, the others vanish.
(in this case only emails to 'user'@theflowerraj.org get sent out).
I'm using V2.10.10
My PHPinfo(): http://theflowerraj.org/multimedia/phpinfo.php
Ubuntu running Qmail
Thank you in advance if anyone knows what we have to change?
Regards,
Nico Morrison

This is probably a Qmail setup problem but my server admin had to move servers & just now I'm using PHPList for the first time since we moved. He also is working on this problem...
_________________________________________
Everything in PHPList looks & seems to work properly.
EG: when sending test messages or actual list messages the PHPList admin panel reports success in both test & list emailing out..
But only emails to *@mydomain arrive, the others vanish.
(in this case only emails to 'user'@theflowerraj.org get sent out).
I'm using V2.10.10
My PHPinfo(): http://theflowerraj.org/multimedia/phpinfo.php
Ubuntu running Qmail
Thank you in advance if anyone knows what we have to change?
Regards,
Nico Morrison