[snip] > If forwarding to an MS Exchange server, md_check_against_smtp_server() > won't work as > exchange will always accept recipients and then send out seperate "user > not found" emails after the fact. since this is the case, you'll want > to look into using either LDAP lookups to validate users or use some > scripts to export your valid AD users into a local user table on the > mail gateway. Both solutions have been discussed on this list. > > hope this helps > > alan
Hi Alan et al, I'm new to the list, so hello everyone! I've beaten Exchange into submission so that it doesn't accept mail and then reject, instead it Does-The-Right-Thing and checks the recipient at the time it gets a "rcpt to". It is a basically undocumented how to turn off this "accept-then-reject feature" that only the Exchange writers seem to know. However, here is a link to how it is done: http://blogs.gotdotnet.com/dlemson/PermaLink.aspx/f8b0ed0a-b586-40a1-ad1b-15e8a7c95dda Furthermore, any exchange admins may want to lock down their exchange server so that it only accepts mail from either authenticated users (through outlook) or from specific hosts. I was able to configure my EX2003 server to do this yesterday and can provide more information if anyone is interested. If you don't lock it down, anyone/anything can inject a mail or virus if they connect directly on port 25. David - -------------------------------------------------------- David Korpiewski Phone: 413-545-4319 Associate Software Specialist II Fax: 413-577-2285 Department of Computer Science ICQ: 7565766 University of Massachusetts Amherst -------------------------------------------------------- _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
