NOQUEUE: reject: RCPT from ... Relay access denied

[Stella]

hi

was hat diese Fehlermeldung auf sich?

Hi. This is the qmail-send program at xxx-xxx.de.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

[e-mail]:
xx.xx.xx.xx does not like recipient.
Remote host said: 554 [e-mail]: Relay access denied
Giving up on xx.xx.xx.xx.

--- Below this line is a copy of the message.
[...]

in /var/log/mail steht folgendes

Apr  3 14:28:48 linux postfix/smtpd[21437]: connect from xxx-xxx.de[xxx.xxx.xxx.xxx]
Apr  3 14:28:48 linux postfix/smtpd[21437]: NOQUEUE: reject: RCPT from xxx-xxx.de[xxx.xxx.xxx.xxx]: 554 [e-mail]: Relay access denied; from=[e-mail] to=[e-mail] proto=SMTP helo=<xxx-xxx.de>
Apr  3 14:28:48 linux postfix/smtpd[21437]: disconnect from xxx-xxx.de[xxx.xxx.xxx.xxx]

gestern abend war die root-Partition vollgelaufen, kann es damit zusammenhängen?

ich kann zwar Mails verwenden, jedoch keine empfangen

Stella