[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now


Exchange 2013 Receive Connectors

Posted on 2014-08-21
Medium Priority
Last Modified: 2014-08-21
Hey guys

Quick question.  A customer of mine recently installed 3 exchange 2013 servers in his network (two locally and one remotely over VPN) and it is working like a charm. He has all three in a DAG and the databases are replicating across all three with zero issues.  Now, I just happen to be digging around and I noticed that all three have their receive connectors enabled.  If one of them goes down, does that mean that the next one in line can receive emails if I have the MX records setup to forward to a different IP address? (the client has multiple public IP's on his router).  If so, that would of course be awesome :-)
Question by:jonmenefee
  • 2
  • 2
LVL 28

Accepted Solution

MAS earned 2000 total points
ID: 40276478
if you dont have a load balancer in place you can create one more MX record with higher priority.
So if the 1st MX record is not reachable it will reach the second one.
e.g. 1st MX   record                  mail.domain.com         pointed to       Priority 10
        2nd MX record                  mail2.domain.com       pointed to      Priority 20
And  do a 1-1 NAT
NAT to the first server   (>
NAT to the second server (>
in this  and are 1st Exchange IPs  and are 2nd Exchange IPs

You can shut down the first server to see emails received in second server.
Make sure both has antispam installed or you should have antispam filtering on your firewall/router

But the recommend way is to use a load balancer.

Author Comment

ID: 40277331
Perfect!!  I will do that this weekend.  Just curious though do I have to do 1 - 1 NAT or can I just open up the various ports on my firewall?  My firewall supports as many public IPs as I can get...
LVL 28

Expert Comment

ID: 40277458
1-1nat on port 25.
To receive email you need only port 25

Author Comment

ID: 40277589
Perfect   thanks!!

Featured Post

How to Use the Help Bell

Need to boost the visibility of your question for solutions? Use the Experts Exchange Help Bell to confirm priority levels and contact subject-matter experts for question attention.  Check out this how-to article for more information.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Marketers need statistics and metrics like everybody else needs oxygen. In this article we explain how to enable marketing campaign statistics for Microsoft Exchange mail.
This process describes the steps required to Import and Export data from and to .pst files using Exchange 2010. We can use these steps to export data from a user to a .pst file, import data back to the same or a different user, or even import data t…
Familiarize people with the process of retrieving data from SQL Server using an Access pass-thru query. Microsoft Access is a very powerful client/server development tool. One of the ways that you can retrieve data from a SQL Server is by using a pa…
The video tutorial explains the basics of the Exchange server Database Availability groups. The components of this video include: 1. Automatic Failover 2. Failover Clustering 3. Active Manager

868 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question