[Apakabar] failure notice

[MAILER-DAEMON at qmx.office.interq.or.jp]

Hi. This is the qmail-send program at qmx.office.interq.or.jp.
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.



<c_slater_j-45 at docomo.ne.jp>:
203.138.180.240 failed after I sent the message.
Remote host said: 550 Unknown user c_slater_j-45 at docomo.ne.jp