Zimbra offers Open Source email server software and shared calendar for Linux and the Mac
  #1 (permalink)  
Old 01-15-2008, 07:07 AM
Jotunn Jotunn is offline
Junior Member
 
Join Date: Jan 2008
Posts: 2
Jotunn is on a distinguished road
Default Zimbra and Exchange deliver to both

Hello,

We are evaluating Zimbra, currently using Exchange 2003. I need to have Exchange and Zimbra running side by side, delivering email to both servers. This deployment is at a single location for a single domain. Any thoughts on how to accomplish this? I did find this in the wiki which is close. I know that by having this users sending from Zimbra will not see the sent email in exchange and visa versa but that is ok.

Thanks in advance.

Cheers,
Reply With Quote
  #2 (permalink)  
Old 01-15-2008, 08:04 AM
shmiv shmiv is offline
Junior Member
 
Join Date: Dec 2007
Location: Roanoke, VA
ZCS Version: 5.0.5_GA_2201.UBUNTU6 UBUNTU6 FOSS
Posts: 7
shmiv is on a distinguished road
Default

We needed to do the same before moving to production and used the following:

1. Put Zimbra on a test domain only available on our network (zimbra.domainTEST.com)

2. Created user on Zimbra using test domain (user@domainTEST.com)

3. Created aliases (Custom Recipients) in Exchange (5.5) that pointed to users on test domain.

4. Used Alternative Recipients in real Exchange users to deliver to Custom Recipient. NOTE that in 5.5 you must select "Deliver message to both.."

5. Added MX record to our internal dns pointing to domainTEST.com.

Probably not the most elegant solution, but it worked for us.
Reply With Quote
  #3 (permalink)  
Old 01-16-2008, 08:07 AM
Jotunn Jotunn is offline
Junior Member
 
Join Date: Jan 2008
Posts: 2
Jotunn is on a distinguished road
Default Going for an inbound SMTP MTA layer

Thanks for the reply shmiv.

The "aliases" idea looks like a good one.

I decided to go a different route and put another MTA agent in the mix acting as an inbound relay server pointing to both Z and E. This way Zimbra is 100% ready to go and all I have to do is kill the relay server at some point.

I will post back once I have it up and running.

Cheers,
Reply With Quote
  #4 (permalink)  
Old 02-04-2008, 12:13 PM
blumanfry blumanfry is offline
Junior Member
 
Join Date: Feb 2008
Posts: 1
blumanfry is on a distinguished road
Default Zimbra and Exchange deliver to both

Quote:
Originally Posted by Jotunn View Post
Thanks for the reply shmiv.

The "aliases" idea looks like a good one.

I decided to go a different route and put another MTA agent in the mix acting as an inbound relay server pointing to both Z and E. This way Zimbra is 100% ready to go and all I have to do is kill the relay server at some point.

I will post back once I have it up and running.

Cheers,
Hi Jotunn,

I was just wondering what your success was with this manner? Can I ask how you setup the inbound MTA to split the domain and sent to both Z and E servers at once? I am looking at setting up a SMTP relay on the inbound, but I just wanted to know what your configuration was and if it worked well for you?

Thank you for any help.
Reply With Quote
  #5 (permalink)  
Old 04-27-2008, 10:27 PM
gilly05 gilly05 is offline
Member
 
Join Date: Jan 2008
Posts: 21
gilly05 is on a distinguished road
Default Sending to two servers...

I think this works... if you setup a postfix MTA in front of both servers, you should be able to have it send the mail to both by adding these lines to your main.cf (once you've setup the proper relay for the first server):

milter_default_action = tempfail
smtpd_milters = inet:"ip of second server"

The only problem that I have run into on this is that if the "second server" goes down (or is taken down for some reason), postfix just errors and doesn't continue to relay to the "first server".

I hope that makes sense. As a practical example, I use a postfox-based spam/virus filter that relays mail for my Exchange server. I wanted to test Zimbra, so I added these lines to my postfix filter's main.cf file. This allowed me to get the email to both servers. But, if I take down the test Zimbra server at all, the postfix filter stops relaying messages to my Exchange server.

Moral of the story: if you do this, be sure to remove the lines and do a "postfix reload" before you take the "other" server down.

I hope that helps.
Reply With Quote
  #6 (permalink)  
Old 05-02-2008, 05:30 PM
gilly05 gilly05 is offline
Member
 
Join Date: Jan 2008
Posts: 21
gilly05 is on a distinguished road
Default

Ok... so I am now having problems with this, as seen in this post. But I think the better option for this type of implementation would be to have the mail directed to Zimbra to begin with, then put the smtpd_milter lines in the /opt/zimbra/postfix/conf/main.cf file pointing it to your exchange server. This might work... I may try this over the next couple of days. I will report back with the results.
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Moral Question - Imail Migration Tool & OSS Zimbra Admin raj Administrators 13 06-20-2008 02:59 AM
Split Domain (zimbra and exchange) w/ some users on BOTH RobLarose Installation 3 09-11-2007 09:43 AM
zmtlsctl give LDAP error sourcehound Administrators 5 03-11-2007 03:48 PM
Zimbra 4 dies on reboot Jools Administrators 6 09-24-2006 08:35 AM
Mail logs Rick Baker Installation 8 01-17-2006 03:33 PM


freshmeat.net sourceforge.net The best Java IDE



 

Search Engine Optimization by vBSEO 3.0.0