How to configure X.500 addresses after domain move/rebuild.

Hello EE users,

I recently recreated a domain moving a small environment from SBS 2003 to Windows 2012 with Exchange 2013.
Mail was exported from outlook and is available in a PST as an archive, as it was a nice opportunity to get people to start clean mailboxes. So to be perfectly clear, accounts (only 20ish) where created on a new forest/domain and email added to these.

Now I know Exchange 2003 used internal addresses (X.400) for mails between internal users, I also know I need to add these to the new accounts on the new server, but I have been not been able to get it to work so that people can reply to mails from the old system that they have in their archived PST's.

I think it's something like a syntax issue or maybe a detail I am missing, so please have a look at what I tried.

Example old user on the old server:
John von Doe
username: j.vondoe
x.400: c=NL;a= ;p=(oldlocalnetbiosdomainname);o=Exchange;s=von Doe;g=John

On the new server he'd have the following:
John von Doe
username: j.vondoe
I've added a x.500 address
X.500: /O=oldlocalnetbiosdomainname/OU=FIRST ADMINISTRATIVE GROUP/CN=RECIPIENTS/

I got the following error when replying to a mail in my archive:
Remote Server returned '550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found'

According to this article (lowest comment) that IMCEAEX line should translate to the X.500 address I added above, but still no go.

So what did I miss, is there a syntax error in there or am I missing a step in my understanding on what I need to add?

More info available on request, I didn't want to make this to spammy a start topic.


Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Lior KarasentiCommented:
Check this article it helped me with same problem not so long ago:

You can also use nk2 Edit to get the X500 addresses from your old address book
GM-ITAuthor Commented:
Thanks Liorkr, I already found that intell (The comment I linked to had that exact same explanation on how to translate the error to an x.500 address) and I used nk2Edit to find what I should enter as x.500 addresses.

That's why I am so confused I can't get it to work... I feel like I did everything correctly, but it's not working, so I must have a flaw in my logic somewhere, missed a step of typed something wrong.

From nk2edit on my old server account:

On the x.500 address added in Exchange 2013:

GM-ITAuthor Commented:
And it's solved...

A really stupid detail, but I'll post it here for others who might run in to it.

My X.500 syntax was fine...

When you create a new email address the field accepts all input when you define the type.
I typed X.500 as  email type as thats what the field below said as type.

However, it should be X500 , not X.500

And then it worked like a charm!

@liorkr 20% points to you as you added useful tips for people even though I new those two already.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
GM-ITAuthor Commented:
I found the issue as it was in the field that defined the type of email address, not in the syntax of the email address. :D
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.