we're trying to setup an SMTP server to send out newsletters.
We have set this up on a Server 2003 VM and have successfully sent email from this server.
We are using the Windows Virtual SMTP server in IIS and have set the domain and the FQDN in the advanced delivery options to be: send.ourdomain.co.nz
As I mentioned, this worked although while we were testing it some of the mail wasn't going through to our clients domains (ie sending it to email@example.com)
We believe this is spam related but are unsure.
send.ourdomain.co.nz is not listed in an MX record for ourdomain.co.nz, nor is it an a record.
This server is communicating to the outside world via an ISA 2006 server which is working fine.
When we are test sending an email we are sending it from Outlook Express on the SMTP server, and the application which will be using the SMTP is also working on the SMTP server so communication to the SMTP server is not an issue.
Are there any tools we can use that will tell us whether we have set up our SMTP server correctly?
Or can anyone give us a checklist so we can check it against our setup?
Any help would be very much appreciated.