how do i disable users from creating pop accounts in Exchange 2010?

Posted on 2010-11-17
Last Modified: 2012-05-10
Some folks are using Outlook 2010 at the office to access there personal pop accounts.  How can I disable that feature for everyone?  Please be as specific as possible.

All of us are using Outlook 2010, Exchange Server 2010, Active Directory and Windows Server 2008-R2.

Thanks for your help.
Question by:WeThePeople
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
LVL 42

Expert Comment

ID: 34160172
You can block outbound TCP 110 and TCP 995 at the firewall. TCP 110 is the standard POP3 service. TCP port 995 is the standard for running POP3 over TLS (SSL).
LVL 23

Accepted Solution

Stelian Stan earned 250 total points
ID: 34160199
To disable it for all current mailboxes:

Get-Mailbox | Set-CASMailbox -PopEnabled $false

I am not aware of any way to set this as the default setting for new mailboxes.\

Author Comment

ID: 34160338
I am unfamiliar with the statement:
Get-Mailbox | Set-CASMailbox -PopEnabled $false
Where do I go to type that in?

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.


Assisted Solution

ManicD earned 250 total points
ID: 34160350
Get-Mailbox | Set-CASMailbox -PopEnabled $false

should be typed in the Exchange Management SHELL (Command Prompt for exchange 2010).

This can normally be found in the All Programs Menu

Author Comment

ID: 34160358
I understand Kevin's method however, I just realized that two people are on our network and operate outside of Exchange 2010.

I still want to stop all Exchange 2010 users from installing pop3 accounts in Outlook 2010.


Author Comment

ID: 34160366
I just found the program Exchange Management SHELL (Command Prompt for exchange 2010).

i opened it and its has a black screen with the words
[PS] c:\Windows\System32>

Author Comment

ID: 34160380
Okay.  I executed the command in Exchange Management Shell.

Is there a way to test if it worked?
LVL 42

Expert Comment

ID: 34160456
Isn't the accepted solution how to prevent Exchange 2010 Users from accessing their Exchange mailbox via POP3? That's not the question, as I understand it. The problem, as I understand it, is that Outlook users are using POP3 to access offsite email accounts. That has nothing to do with Exchange. It's an Outlook/networking/firewall problem.

Featured Post

MS Dynamics Made Instantly Simpler

Make Your Microsoft Dynamics Investment Count  & Drastically Decrease Training Time by Providing Intuitive Step-By-Step WalkThru Tutorials.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Lotus Notes – formerly IBM Notes – is an email client application, while IBM Domino (earlier Lotus Domino) is an email server. The client possesses a set of features that are even more advanced as compared to that of Outlook. Likewise, IBM Domino is…
What does UTC stand for?  “Coordinated Universal Time” – Think of this as the true time on Planet Earth that never changes with the exception of minor leap seconds here and there to account for the changes in the planet's rotation.   What does th…
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…
CodeTwo Sync for iCloud ( automatically synchronizes your Outlook 2016, 2013, 2010 or 2007 folders with iCloud folders available via iCloud Control Panel. This lets you automatically sync them with…

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question