And your MX registry is not pointing to a public IP address? Try alias@xxxxxxxxxxxxxxxxxx and create an alias. Where your_smtp.nfti.com poins to the internal ip address. SMTP will try to find MX records pointing to this domain (that doesn't exist), BUT will try to sendo to the host name after the @. -----Original Message----- From: Greg Foulks [mailto:greg.foulks@xxxxxxxx] Sent: sexta-feira, 3 de agosto de 2001 12:09 To: [ISAserver.org Discussion List] Subject: [isalist] RE: IIS SMTP (Kind of OT) http://www.ISAserver.org Behind my ISA server Greg Foulks, MCP NewFound Technologies, Inc. http://www.nfti.com Email: greg.foulks@xxxxxxxx Voice: 614.318.5036 Fax: 614.318.5005 -----Original Message----- From: Hugo Caye [mailto:Hugo@xxxxxxxxxxxxx] Sent: Friday, August 03, 2001 11:01 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: IIS SMTP (Kind of OT) http://www.ISAserver.org It seems that there are DNS resolution problems... or packet filters. Where does sit the SMTP at nfti.com? -----Original Message----- From: Greg Foulks [mailto:greg.foulks@xxxxxxxx] Sent: sexta-feira, 3 de agosto de 2001 09:24 To: [ISAserver.org Discussion List] Subject: [isalist] RE: IIS SMTP (Kind of OT) http://www.ISAserver.org That is just the thing. I have it setup to send NDR's to postmaster@xxxxxxxx but instead they just pile up in the badmail directory. I can send email to the postmaster through this SMTP server with no problem. Just seems the SMTP server can't send on it's own. Greg Foulks, MCP NewFound Technologies, Inc. http://www.nfti.com Email: greg.foulks@xxxxxxxx Voice: 614.318.5036 Fax: 614.318.5005 -----Original Message----- From: Hugo Caye [mailto:Hugo@xxxxxxxxxxxxx] Sent: Friday, August 03, 2001 8:16 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: IIS SMTP (Kind of OT) http://www.ISAserver.org What about the postmaster? Does he receive NDRs also? -----Original Message----- From: Greg Foulks [mailto:greg.foulks@xxxxxxxx] Sent: sexta-feira, 3 de agosto de 2001 09:13 To: [ISAserver.org Discussion List] Subject: [isalist] RE: IIS SMTP (Kind of OT) http://www.ISAserver.org Hugo, Yes the IIS SMTP server functions normally except for the badmail folder that fills up. Greg Foulks, MCP NewFound Technologies, Inc. http://www.nfti.com Email: greg.foulks@xxxxxxxx Voice: 614.318.5036 Fax: 614.318.5005 ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: greg.foulks@xxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: Hugo@xxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')