Hi Scott, The firewall is fine, the NAT and port forwarding work fine - I'm happy all is OK - local clients can see the net and the net can see my web & mail servers.
The firewall is a Coyote Linux job, with no services running on it all all (other than the necessary to do what I want) IP of the firewall is 10.1.1.1, IP of the mail server is 10.1.1.2 with workstations starting at 10.1.2.1 If I enter the the address list in Imail as 10.1.2.0 with mask 255.255.0.0 A dialogue pops up, says the mask is incorrect do I want to change yes or no - the no option then returns me to the main Imail screen with no changes made. I've manually entered the addresses no but this seems a touch inelegant.... Regards, Guy -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of R. Scott Perry Sent: 07 July 2003 16:24 To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] Open Relay settings. >I have exactly the same problem - I'm using a linux firewall with NAT >and I use prot forwarding. I'm guessing that the Imail box sees that >forwarded port as coming from itself so it relays. NAT and port forwarding will work fine. Most likely, the firewall is broken, and doing something wrong (such as NATing the outside world instead of the local network). Also, it's possible that the firewall is acting as a gateway mailserver, in which case IMail will see the IP of the firewall, and the firewall is responsible for all anti-relay settings (by adding a gateway mailserver in front of IMail, you're giving up IMail's ability to block E-mail by IP). >In the end I've restricted access by IP address - trouble is I'm using >10.x.x.x range with a custom subnet mask of 255.255.0.0 and Imail won't >accept this.... It won't? I thought IMail would accept all IP ranges using netmasks. If you post all the Received: headers of a sample incoming E-mail, I can let you know what the firewall is doing. -Scott --- Declude JunkMail: The advanced anti-spam solution for IMail mailservers. Declude Virus: Catches known viruses and is the leader in mailserver vulnerability detection. Find out what you have been missing: Ask for a free 30-day evaluation. --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
