Removing x400 addresses from default e-mail policy

Hey Everyone,

In the past we have had issues with with bounce backs on accounts that were re-created for users. I believe the issue is due to the users' x400 addresses. We are looking to remove the x400 from our default email policy to avoid this issue in the future. If I am understanding it correctly, by removing the x400 address, an account that is created in the future will not receive a bounce back because it is only looking at the SMTP address and not looking for a x400 address?

By removing the x400 address from the default policy and applying it, will that remove the x400 address for all accounts that have one or will it keep them and not add an x400 address for future accounts that are created?

Also, we are running Exchange 2010. Recently upgraded from exchange 2003 about 6 months ago.

Any help is appreciated.

Thanks!
post_universityAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
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.

ExchangeOnTheRocksCommented:
Yes, you can safely remove the X400 addresses given that you do not have any other emailing systems apart from Exchange in your setup.
Removing it from the default email policy and applying them will prevent new users from being stamped in Exchnage 2010. Old accounts will still have the X400 address for which you can run the above mentioned script.
post_universityAuthor Commented:
After changing the default email policy and running the script to remove all the x400 addresses will we have a bunch of bounce backs since all of our users use autocomplete?

Will their autocomplete file look for that x400 address that is now missing and bounce back?
als315Commented:
Autocomplete should not search for x400 addresses, but you can test it: delete one x400 address and try autocomplete
ExchangeOnTheRocksCommented:
Autocomplete feature is based on the .nk2 files and looks for legaqcyDN values. It should not look for X400 addresses and hence there should not be any bounce backs.

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
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
Microsoft Server Apps

From novice to tech pro — start learning today.