The email proxy has nothing to do with sending mail. It only comes into play when you receive mail.
Your problem sending mail is almost certainly that your email client is trying to use the external address of the GNAT Box to connect to your email server, rather than using its "true" address on your LAN or PSN. The GNAT Box email proxy then responds to the connection and rejects the mail because it is not addressed to your domain. Check your DNS configuration. If you don't have an internal DNS server then what is happening is that when your email client tries to connect to your mail server, it is getting the address from your ISP's DNS server, which responds with your GNAT Box EXT address. You will need to either add an internal DNS server that responds with the "internal" address of your mail server, or you will need to configure your email clients to connect using an IP address instead of a name. If you do have internal DNS then make sure that you are not using the same DNS lookups internally that you are providing to the outside world. This would result in the same problem as if your ISP were hosting your DNS and you had no internal DNS server. The solutions are also the same. If you have separate internal and external DNS servers, then check your internal DNS server to make sure that it is returning the "real" IP address of your mail server on the PRO or PSN, and not returning the address that you give to the outside world (the GNAT Box's EXT address). -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Lowell Tyler Sent: Wednesday, February 02, 2000 8:57 PM To: [EMAIL PROTECTED] Subject: Incoming e-mail being rejected? And e-mail proxy question... Send postings to: [EMAIL PROTECTED] Access the list archives at: http://www.gnatbox.com/gb-users/ ---------------------------------- Hi, I have been getting some errors like the following: Feb 1 10:06:33 psn FILTER: Connect to closed port : TCP fxp0 [198.3.99.25/25]->[xxx.xxx.xxx.x/20202] l=0 f=0x12. Does this mean some mailers are not sending mails to us? I thought most mailers send mail to a destination port of 25, but this one is start on 25 and ending on some random port. Doing a nslookup on the source ip reveals it's coming from "goatee-rwcmta.excite.com". Also, we had this strange problem. Using the e-mail proxy, we were receiving our e-mail, but we could not send any e-mail. Every domain was being rejected. Why would this happen? When I use a tunnel on port 25, everything is okay. Any help is appreciated. Lowell Tyler [EMAIL PROTECTED] ---------------------------------------------- To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe gb-users your_email_address in the body of the message
