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Message Coexistence Between Exchange 5.5 and Exchange 2... - 20.Jan.2008 11:51:06 PM

Dream31

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Joined: 27.Sep.2007
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Currently i am migrating user from Exchange 5.5(Windows 2000) to Exchange 2003 Std Ed(Windows 2003) using admt, adc and migration wizard according to the guide from microsoft's technet in Inter-Organizational scenario.

Unfortunately , i am facing big problem in messaging co-existence between Exchange 5.5 and Exchange 2003. There are 500++ users, this is very important to do the coexistence. Anyone facing this before.

Post #: 1

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RE: Message Coexistence Between Exchange 5.5 and Exchan... - 21.Jan.2008 10:18:50 AM

ismail.mohammed

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hi,

what is the problem you are facing

(in reply to Dream31)

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RE: Message Coexistence Between Exchange 5.5 and Exchan... - 4.Feb.2008 3:06:51 AM

Dream31

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user from exchange 5.5 cannot send email to user at exchange 2003 and vice versa

(in reply to ismail.mohammed)

Post #: 3

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 4.Feb.2008 8:36:40 AM

ismail.mohammed

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From: India
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hi mate,

Can you do a message tracking when you send a mail from 2k3 to 5.5
any non-delivery report, if so please post that one also

(in reply to Dream31)

Post #: 4

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 27.Feb.2008 7:13:43 AM

federico

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I�m working in the same scenario (5.5 to 2k3, inter-org). I�m using Exchange Migration Wizard to migrate mailboxes. I have migrted one mailbox, but I only receive mail in 5.5 recipient, not in 2k3 mailbox. What am I forgetting?

(in reply to ismail.mohammed)

Post #: 5

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 27.Feb.2008 7:49:39 AM

ismail.mohammed

Posts: 2336
Joined: 9.May2007
From: India
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hi mate,

R u facing mailflow between the organization or between the servers
R u getting any non-delivery report?

(in reply to federico)

Post #: 6

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 27.Feb.2008 10:28:15 AM

federico

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I�m not getting any NDR, and there is no mailflow between organization nor between servers....I receive mail in 5.5 recipient, and I don�t receive enaything in 2003 mailbox...??

(in reply to ismail.mohammed)

Post #: 7

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 28.Feb.2008 6:38:38 AM

federico

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I�ve read in Technet documentation (http://technet.microsoft.com/en-us/library/aa996178.aspx) that the steps to follow after migration a mailbox to exch2k3 are:

Remove migrated mailboxes from Exchange Server 5.5.

Re-establish coexistence for migrated mailboxes (optional).

Make sure that the owners of the migrated Exchange Server 5.5 mailboxes perform the final user tasks.

I need coexistence for migrates mailboxes, is this the only way to do it? this means that if I have 2 mailboxes (one in 5.5 and another one in 2k3) for the same user, it�s impossible to have coexistence?

If so, how can I do a quick test of creating a custom recipient in 5.5 to enable coexistence?

(in reply to federico)

Post #: 8

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 28.Feb.2008 10:21:27 AM

ismail.mohammed

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From: India
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hi mate,

If you create new mailbox in 2k3 and in 5.5 also, the mailflow is happening? if your normal mailflow is not working then you need to resolve that one

(in reply to federico)

Post #: 9

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 28.Feb.2008 12:10:52 PM

federico

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I�ll try but, what makes mail flow from 5.5 to exch2k3, since recipients in both systems have the same e-mail addresses??

(in reply to ismail.mohammed)

Post #: 10

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 28.Feb.2008 1:20:23 PM

ismail.mohammed

Posts: 2336
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From: India
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hi mate,

i am not getting here, but i know for sucessful replication and mailbox movement you need to have mailflow between the forest for the existing account. please ellaborate little bit for me.

(in reply to federico)

Post #: 11

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 29.Feb.2008 5:22:00 AM

federico

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Hi again,

I�ve an Exch5.5 in an NT domain, Exch2k3 in a W2000 native domain. Bidirectional trust-relationships between domains. After migrating accounts with ADMT, users are logging on W2000 domain, and their mailboxes are 5.5. I�m performing an inter-org migration. I�ve installed ADC and I�ve run Recipient Connection Agreement from 5.5 to Windows, everything OK (existing accounts get some attributes filled, and non-existing accounts created as disabled accounts). I create an user in W2000 domain with mailbox in 5.5, start ADC and wait for replication. Then I send an e-mail from external domain to the user and it�s received in 5.5 mailbox, but not in Exch2k3 mailbox. Same behaviour with ADC running or stopped.

First question: Should the mail flow from 5.5 to Exch2k3, or should I delete 5.5 mailbox and creat a custom recipient instead (both recipients have the same e-mail address)? Or, in other way, which is the normal mail flow under this situation?
If so: Generation of custom recipients could be done configuring and running a new Recipient Connection Agreement from Windows to 5.5, but I would like to make a previous test creating manually the custom recipient once the mailbox in 5.5 is deleted. The question is how?

Thanks.

(in reply to ismail.mohammed)

Post #: 12

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 29.Feb.2008 7:46:23 AM

ismail.mohammed

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From: India
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hi fed,

I need to have clear picture...

I guess you have Windows NT with Exchange 5.5 and ADC connector connecting your dir.edb and mailbox with windows 2000 domain having Exchange 2003 ? right.

Now i guess you have two way connection setup via ADC? right...

From Exchange 5.5 it has created a contact in windows 2000 domain and vice versa. Both the end it is working fine.

Now lets say...
In NT we have one user account with one mailbox and if we go with ADC concept by not creating any account in windows 2000 then it will create a disabled users for the mailbox in AD itself.

Second if we have one user account with two or more mailbox and we have created a user account in windows 2000 domain it will associate the first mailbox with user account and for others you will have disable account.

If the above one is working fine then ADC is working i.e changes occuring (above 2 scenario are just an example)

Once you moved the mailbox and account to windows 2000 domain, in exchange 5.5 box are you able see those moved mailbox ?

Once you moved the mailbox to the Exchagne 2003 are able to send and receive email in that moved mailbox? I guess you are facing the issue. I would suggest here take the ldp dump of this specific user and check the homemdbvalue and homemta value where it is pointing.

If you create a new user account with a new mailbox in Exchange 2003, is it working fine?

Sorry if i asked the same question once again.

(in reply to federico)

Post #: 13

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 29.Feb.2008 8:14:55 AM

federico

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Hi,

I have one way connection setup via ADC: 5.5 to Windows. I guess my problem is that I should have two way connection setup via ADC, but I would like to manually create the contact in 5.5 to simulate the effects of Windows to 5.5 ADC Conn.Agreement (don�t care the reasons, by now I cannot install that Conn.Agreement).

...Once you moved the mailbox and account to windows 2000 domain, in exchange 5.5 box are you able see those moved mailbox ? YES

Once you moved the mailbox to the Exchagne 2003 are able to send and receive email in that moved mailbox? NO, I can send, but not receive.

If you create a new user account with a new mailbox in Exchange 2003, is it working fine? I WILL TRY.

Thanks.

(in reply to ismail.mohammed)

Post #: 14

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 29.Feb.2008 8:56:54 AM

ismail.mohammed

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From: India
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Recommended option is need to have two way connection.

If you are able to see in both the Exchange then there is a problem. In Exchange 5.5 are you able to mailboxes for two times for each users?

and try my option and let me know the status

(in reply to federico)

Post #: 15

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 29.Feb.2008 10:00:51 AM

federico

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I know, and I know the two way connectios will create custom recipients in 5.5.

I just want to create one of these manually, just to test, and I�m not sure how to configure it, I still dont�t understand how it works. Moreover, I don�t know if I have to delete migrated 5.5 mailbox before creating the custom recipient.

Speaking of mailboxes, when I migrate one to 2003, in 5.5 it still appears, but it�s hidden...is this ok??

thx

(in reply to ismail.mohammed)

Post #: 16

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 29.Feb.2008 10:29:26 AM

ismail.mohammed

Posts: 2336
Joined: 9.May2007
From: India
Status: offline

hi mate,

are you following any Kb articles?

Please have a look into this
http://www.msexchange.org/tutorials/Overview-Active-Directory-Connector.html

http://www.msexchange.org/tutorials/Exchange-55-Directory-Migration-Exchange-2003.html

(in reply to federico)

Post #: 17

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 29.Feb.2008 10:50:22 AM

federico

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Joined: 27.Feb.2008
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Hi again,

Yes, I�m following several kb articles, I know that I�m not following all the steps, but my client is afraid of everything, and I just want to demonstrate that installing the second connection agreement won�t cause probles, and will solve this one.

Then, if I knew exactly what "Windows to Exchange 5.5" Connection Agreement does, I could do it manually with only one recipient, and check if this is the problem.

(in reply to ismail.mohammed)

Post #: 18

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 2.Mar.2008 6:12:48 PM

federico

Posts: 21
Joined: 27.Feb.2008
Status: offline

hi,

I�ve configured two one-way connections. Once I migrate a mailbox to 2k3, I delete the mailbox in 5.5 and then I run windows-to-exchange Connection Agreement in order to get the custom recipient created in 5.5 (coexistence with 5.5). The error I get when I send mail from internet is something like this:

Maximum receipt headers exceeded (possible mail loop).

Any idea?

(in reply to federico)

Post #: 19

RE: Message Coexistence Between Exchange 5.5 and Exchan... - 4.Mar.2008 8:23:43 AM

federico

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Joined: 27.Feb.2008
Status: offline

Do I have to configure an SMTP connector in 5.5 to reach 2003 mailboxes??...custom recipients in 5.5 and mailboxes in 2003 share the same e-mail addresses....

(in reply to federico)

Post #: 20