Andreas-NYC
asked on
reverse DNS lookup
SO i have this challange that AOL keeps bouncing back emails sent from my Exchange 2010 server hosted on 2008r2.
We use the Default Sent Connector (Use Domain Name System MX record to route mail automatically")
This works fine on so far alll email sent out.... BUT AOL... they seem to do a Rerverse DNS lookup and that is not good as we do not have them set correctly (the have different names (our hosts has his own naming is on there)
Yet the host is willing to change the naming to what ever i need...
So here is my question ...
What do i tell him to name it... so email wont get bounced back.
my FQDN is for example SERVER.Domain.com and it is on a public IP 1.234.567.89
i did setup up reverse DNS on the servers DNS settings for the IP but i am not sure what to tell the host to name it too so it will work...
Thanks for your help...
We use the Default Sent Connector (Use Domain Name System MX record to route mail automatically")
This works fine on so far alll email sent out.... BUT AOL... they seem to do a Rerverse DNS lookup and that is not good as we do not have them set correctly (the have different names (our hosts has his own naming is on there)
Yet the host is willing to change the naming to what ever i need...
So here is my question ...
What do i tell him to name it... so email wont get bounced back.
my FQDN is for example SERVER.Domain.com and it is on a public IP 1.234.567.89
i did setup up reverse DNS on the servers DNS settings for the IP but i am not sure what to tell the host to name it too so it will work...
Thanks for your help...
SOLUTION
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ASKER
I dont think i have a PTR record set i have A records set
Unless your ISP has delegated reverse authority to you or your hosting provider, then it is they who you will need to contact to get your PTR record updated as they own the IP and are authoritative for it.
ASKER
So they will change the CoLocation Bandwith Provider sets the Reverse DNS to my FQDN and make a correct pointer to the IP ? not done on my servers DNS ?
Yes your provider will have to set the reverse DNS on their systems as they would be the netblock owner.
ASKER
yes they will set it .. but do i have to tell them what to set it to based on my FQDN ? or will this go by IP address only ?
You tell them the FQDN of your outgoing name server and which IP you want changed, they will know what to do.
ASKER
I have 4 IP's available on MY network... do ihave to give them all 4 or just pick one and make sure an A record is available for FQDN SERVER.Domain.com i think i have 4 A records each pointing at the FQDN on each IP...
All you need to worry about right now is the IP that your sending server is using. Make sure the A record for your sending server is pointing to that IP.
ASKER
I have a MX record that is pointing at mail1.Domain.com isnt that what Exchange will use when it sends out email ... so i have to give them that or really only the FQDN Server.Domain.com
Sorry for the hassle i just have to make sure i am doing the right thing...
Sorry for the hassle i just have to make sure i am doing the right thing...
SOLUTION
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ASKER
thank you so much... i will go right on it...
Thanks to everyone who helped me towards this issue...
Thanks to everyone who helped me towards this issue...
ASKER CERTIFIED SOLUTION
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ASKER
thank you .. i passed the FQDN and the IP to the Network Provider... and hope this will fix the Reverse DNS issue... thank you very much...
ASKER
Good work and thanks for the expert advice.. all works like a Charm...
Glad you got it working however I'm not sure why the other expert got the accepted solution and an additional assist, all of that info was provided first by me in both occasions.
ASKER
ops i made a mistake sorry ... i hope i can fix that somehow...
It's ok just remember that us Experts work for points, so please assign them properly when possible :)
ASKER
yes i will ... maybe i can fix it somehow.... you deserve it ... i am so sorry ...
You can put your IP into http://network-tools.com/ to verify what the PTR record resolves to.