Whats the Best Way to Restrict Sending E-Mails to Certain Groups of People?

We have an external Sales force and other groups of users that I would like to apply this too. They all have our company exchange / ad accounts. user@company.com

A long time ago I created a dynamic distribution list so only certain users can email distribution list and this works fine. However, If a regular employee selects the whole company address book (we only have one address book) is there a way to prevent that employee from being able to email the sales / other users directly?

Whats the best way to approach this?

Exchange 2013, most all users use Outlook 2010 or 2013.

Who is Participating?

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

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.

Will SzymkowskiSenior Solution ArchitectCommented:
The best way to lock this down is to create a Mail Enabled Security Group and then add this group to the Allowed Users on the distribution group. Only users within this group will have the ability to send email to this distribution group. This allows you to easily add/remove users from the group at any time. See screenshot below...
Also as i have pointed out in the screenshot you can also have message moderation, which means that someone has to approve sending to the group before the message is sent.

You can also use powershell to accomplish this with the reverse. Meaning if you want to allow everyone and block specific people. Run the following command...
Set-DistributionGroup -identity DG1 -RejectMessagesFromSendersOrMembers "bob smith"

Open in new window

Or a group

Set-DistributionGroup -identity DG1 -RejectMessagesFromSendersOrMembers "group1"

Open in new window


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
Shweta GoelCommented:

For Outlook 2010 and 2013

•      Select Home > Junk >Junk E-mail > Blocked Senders >Add.
•      Enter the name or address which you want to add.
•      Now, click on OK.

SteveAuthor Commented:
Will, thanks for that comment it was great, now what about the individual email accounts? Can someone still select the sales users individually and email?
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.