Link to home
Start Free TrialLog in
Avatar of webox_suuport
webox_suuport

asked on

Windows NLB - Hide real server IP

Hi,
We are running Windows NLB 2008R2 on 2 members with Exchange HUB roles installed.
We found out that some email servers are rejecting the outgoing traffic because they see the real server IP instead of the NLB IP.
How can I change that so the outgoing traffic will be routed only on the NLB so the external servers will see the NLB only?
ASKER CERTIFIED SOLUTION
Avatar of Netman66
Netman66
Flag of Canada image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
hmm.. do you have a sample email about the reject email?
NLB only works for inbound connections. That is why you see outbound SMTP coming from the individual server IP and not the cluster address.
Avatar of webox_suuport
webox_suuport

ASKER

Hi,

I can see in the queue the following error:
client host rejected cannot find your hostname, [82.80.251.38]

I have PTR for this record but still cannot email some clients.
you need to start a new question as the answer has accepted.