Odchozi emaily

Dobry den,

Vraceji se mi emaily s nasludujici zprávou. Prosím o info kde muže byt problem kromě nesprávneho adresáta? Dekuji.

This is the mail system at host wes1-so1.wedos.net.

I’m sorry to have to inform you that your message could not
be delivered to one or more recipients. It’s attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<tom.cambell@gecas.com>: host mxa-00176a02.gslb.pphosted.com[67.231.149.43]
    said: 550 5.1.1 No such user – pp (in reply to RCPT TO command)
Reporting-MTA: dns; wes1-so1.wedos.net
X-Postfix-Queue-ID: 47cDqx3gB7z1P5
X-Postfix-Sender: rfc822; purchasing@gs-air.com
Arrival-Date: Mon, 16 Dec 2019 22:27:09 +0100 (CET)

Final-Recipient: rfc822; tom.cambell@gecas.com
Original-Recipient: rfc822;tom.cambell@gecas.com
Action: failed
Status: 5.1.1
Remote-MTA: dns; mxa-00176a02.gslb.pphosted.com
Diagnostic-Code: smtp; 550 5.1.1 No such user – pp