Hello all
We have had emails returned for this reason: "This message has been blocked because the HELO/EHLO domain is invalid" when sending to another domain. We are using Exchange 2003 on a Server 2003 box. We use a .local domain in Windows DNS, but in the properties of the SMTP server we have set a Masquerade Domain which is a .com domain (the domain we send emails from is in fact a .com domain). I understand that .local domains are not routable in worldwide DNS.
Does anyone here have any experience with this kind of issue? We seem to be blocked purely on the HELO/EHLO message that is sent out from the server.
We are using an SMTP feed to receive our emails through our ISP.
Many thanks for any help on this issue!
We have had emails returned for this reason: "This message has been blocked because the HELO/EHLO domain is invalid" when sending to another domain. We are using Exchange 2003 on a Server 2003 box. We use a .local domain in Windows DNS, but in the properties of the SMTP server we have set a Masquerade Domain which is a .com domain (the domain we send emails from is in fact a .com domain). I understand that .local domains are not routable in worldwide DNS.
Does anyone here have any experience with this kind of issue? We seem to be blocked purely on the HELO/EHLO message that is sent out from the server.
We are using an SMTP feed to receive our emails through our ISP.
Many thanks for any help on this issue!
