Blocking an individual email address

[Dennis Willson]

without a little more information I cannot tell for sure, but it sounds like the client that's running Outlook is on an IP address 
block that's allowed to relay and there's something about how openwebmail sends its mail that doesn't appear to be in the client 
address block. Possibly openwebmail is doing a local invocation of Sendmail to send instead of using a socket so it doesn't appear 
to have an address to be allowed.

Just a thought...

James Csoka wrote:
> I'm reposting this here to see if maybe anyone here knows of some reason 
> that Mailscanner would or would not be causing the issue that I seem to 
> be having.  I posted this in freebsd-questions, but I'm not having much 
> luck figuring out what is happening.  Any help would be greatly appreciated.
>  
> 
> I have a mail server (it also functions as a firewall) running freebsd5.4,
> with mailscanner, openwebmail, and sendmail.  I wish to block an individual
> email address, but I do not want to mark it as spam.  My first solution was
> to add the blacklist feature to the sendmail.mc file, and recreate the .cf
> file, which I did.  I then added the line To:user at example.com  REJECT to the
> /etc/mail/access file, and ran make maps.  I also had added the line
> user at example.com <mailto:user at example.com>  REJECT.
> 
> This then blocked that address from sending email to people on my internal
> network.  When I tested it from outside my network I used openwebmail as a
> web interface to send email to that address, and it failed.  Which was what
> I wanted.  However, from inside my network, using Outlook, you can send
> email to that address without a problem.
> 
> It seems as if the access.db is doing it's job.  When using openwebmail, the
> smtp server rejects any attempt to send mail to that address.  however,
> locally, it does not.  When i'm sitting in front of my windows client, I can
> use Outlook and send email to that address without a problem.
> 
> Does anyone know why via a web interface, the access file rules would apply,
> yet they would be ignored when sending mail from inside the network using
> Outlook to send external email?
>