Ale to nie je tvoja chyba, mas tam predsa jednoznacne napisane, ze cielovy server adanet.com.al odvetil tvojmu smtp, ze unknown user. Takze ty zo svoje strany nemas co riesit.
Moj Postfix server hlasi to iste.
The Postfix program

<arisen@adanet.com.al>: host mail.adanet.com.al[80.90.80.91] said: 550 Unknown
user (in reply to RCPT TO command)