Bulk add new smtp domain to existing user accounts

We need to add a new primary smtp domain to for all users and are looking at the easiest way of doing this. We need to keep the left-hand -side name the same as the existing (joe.bloggs1@olddomain.com will change to joe.bloggs1@newdomain.com).

Is there a way for us to run a script that will read "joe.bloggs1" portion and create a new joe.bloggs1@newdomain.com ?
Who is Participating?
SembeeConnect With a Mentor Commented:
Based on the above, what I would do is extract what you have using the above tools.
Then copy the email address column to a new column for the second address. Do a find and replace on that column to change the email domain and then re-import. Get it right, nothing else changes.

tigermattConnect With a Mentor Commented:
Is the part before the @ sign manually generated on each account, or is it just a complex recipient policy? If it's just in recipient policy, you could easily copy in the settings used for your old domain to a new entry, with all the variables and parameters (but with the @newdomain.com), then let it apply to users.

If you've manually generated all the bits before the @ sign though, then you'll have to get someone to write you a script...

ericdalyAuthor Commented:
Thanks tigermatt,
     Its is a bit of a mess to be honest as alot of manually modifed addresses exist so proagating a new domain policy does not suit. Approx 8500 users.

We are working on a script but very messy to get right.
Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Network_Data_SupportConnect With a Mentor Commented:
crate a recipent policy


and then apply it to to all users
JohnDemerjianConnect With a Mentor Commented:

i did this exact thing a while back and i thought i had the whole routine but i can't find it.  i'll take a look for you at home if you tell me you are still looking for a solution.  in the mean time, take a look at this...

ericdalyAuthor Commented:
Thanks for all your input guys. After hours of toying around I came up with an excel spreadsheet that contains formulas that can create a command that we place in a batch file which in turn updates the primary smtp field.
If you would like a sample of this please PM me.
ericdalyAuthor Commented:
or email me !
eric.daly at gmail dot com
All Courses

From novice to tech pro — start learning today.