Re: In-queue rejections

[Wietse Venema]

Daniel L. Miller:
> 5F47320CEC2  4338844 Mon Dec 28 13:12:09  idiotu...@amfes.com
> (host mail.fireprobymesa.com[65.40.152.138] said: 550 5.1.1 User unknown 
> (in reply to RCPT TO command))
>                                          jeff...@fireprobymesa.com

That does not seem right. You have "soft_bounce" turned on in
main.cf or master.cf.

        Wietse