Some of my users are getting the "Delivery Status Notification (Delay)" messages in their inbox for mails sent to a single recepient. Here is what confuses me
I did the nslookup test and saw 2 MX servers. I was able to connect to one but not the other...both has 0 preference. I went over to dnsstuff to make sure and the result was
- On first MX server: [Could not connect: Could not receive data: Operation timed out.]
- On second MX server: [Successful connect: Got a good response [250 ok]] (took 0.500 seconds)
I am using IIS SMTP as a relay server for my exchange 2003, it acts as a gateway server. Why is it not sending the mail to the second IP to avoid the delay mails?...just curious.