>>Yes, it could be. You can just check your IMail logs to see the exact >>reason for the "unknown user" message. You are listed in ORDB (and >>NJABL, which isn't commonly used), which could account for the problem.
>thanks very much, unfortunately I'm pretty new to the mail administration >- if what you say about ORDB and NJABL is tru what should it be and does >anyone have any recommendations on resolving the issue? You are listed in ORDB and NJABL because you run an open relay, which means that while you may be charging your customers to send mail (or letting employees send mail for free), you are also allowing spammers to send E-mail for free. You need to close your open relay. To not be an open relay, you can either use IMail's "Relay for addresses" (in which case you would enter a list of "safe" IP addresses that your users may come from; anyone not coming from those safe IPs would need to use SMTP AUTH), or "No mail relay" (which really means that everyone must use SMTP AUTH). Note that relay setting apply only to outgoing E-mail, so no matter what your settings are, your users will still be able to get mail. Then, you can contact those two spam databases ( http://www.declude.com/junkmail/support/ip4r.htm has the URLs for those and any others). -Scott --- Declude: Anti-virus, Anti-spam and Anti-hijacking solutions for IMail. http://www.declude.com --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
