Question : Exchange 2003 and RDNS recieveing email delay errors

I have 2 Exchange 2k3  servers installed on a server with 2k3; one front end the other backend.  SMTP is routed through the backend.

i host my own DNS servers both forwarders and reverse.  i have made arrangements with my hosting provider and have setup the correct entries on my RDN server.  

Emails are still geting bounced but only by two isp's. AOL and Optonline.  i believe my problem is where the qualified domian name located in ESM under SMTP > advanced.  a thing we need to note is i host several domains here; although i have created rdns entires for all neccessary domains, do i need to ad rdns entris under the ISP block?  

for example i have the following

in DNS under Reverse DNS are the following records
209.164.47.x subnet
209.164.47.64/27

all of my rdns entries are under (209.164.47.x subnet)


Do i need to create entries under the block delegated to me by the ISP?

Answer : Exchange 2003 and RDNS recieveing email delay errors

OK, thank you.

First, your SMTP greeting is wrong on your sending server, you need to change it from vinduvin.com to mail.vinduvin.com - you do that like so -> http://help.block.net.au/SMTP-Greeting.htm

Second, your SMTP greeting is wrong on your other server as well, you need to change it from email01.vinduvin.local to email01.vinduvin.com - using the same guide above.

Third, you have no reverse DNS entries for either of those IP addresses - you need to talk to your ISP and tell them you want a reverse DNS address for 209.164.47.78 pointing to mail.vinduvin.com and one for 209.164.47.70 pointing to email01.vinduvin.com

That looks to be about it - you aren't blacklisted, and you are not an open relay.

Fix the above, and you should be done.

-red