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Can't remove additional mailbox(es) from Outlook

The problem I am experiencing lately is that when I add additional mailboxes to my Outlook, I can't seem to remove them.

The scenario is as follows:

1. Open Outlook
2. Click Tools -> Email Accounts -> Change -> More Settings -> Advanced -> Add..
3. Select the mailbox I want to add (e.g. Mailbox - xxxx)
4. The mailbox now shows up in Outlook and I can access the mails fine

My Outlook screen now shows the following in the left hand pane:

Mailbox - Anthony (my main inbox)
Mailbox - xxxx (the newly added inbox)

Here's where the problem occurs. Normally, I can simply retrace my steps as above and remove "Mailbox - xxxx" no problem, however lately when I go to remove the mailbox using this method it doesn't show up in the list at all!! The mailbox is still visible and accessible in my main Outlook screen but I just can't remove it.
Right clicking on it and selecting "Close Mailbox - xxxx" gives me the following message... "This group of folders is associated with an e-mail account. To remove it, on the Tools menu, click E-mail accounts, select View or change e-mail accounts, click Next, and then click Remove". This is exactly what I have been trying to do, but as I just mentioned, the mailbox doesn't show up in the list hence I can't remove it.

Has anyone experienced this/have any advice as to how I can remove the mailbox??

Thanks in advance.
Updated - 15th Sep 2008

Answers (7)

1 Vote
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RE: Can't remove additional mailbox(es) from Outlook
Open the registry editor, and go to

HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Default

Look through each of the folders below that to find which ones is causing the particular mailbox to be opened, then delete that whole folder
16th Sep 2008

Replies

Thanks for your reply. I expanded the above registry hive and there were several entries in here. I deleted pretty much all of them (bar the ones that were valid and I wanted to keep), but the mailboxes still remained in Outlook.

I have resolved the issue in a roundabout way by just recreating my Outlook profile which has removed them all.

Thanks for the information anyway, i'm sure it will come in handy at some stage no doubt.
anthony.sartini@... 17th Sep 2008
I had a mailbox listed in the folder list, but wasn't removable 'cos it wasn't listed under 'Email accounts'.

Deleting the reg ref worked a treat. Cheers!

I think deleting and recreating Outlook profiles should be an (admittedly painful) annual task for all geeks with different accounts, rules and syncronisations going on.

Outlook kludges up very easily, and is normally the first thing that I (and users at work) will complain about if their 'PC is being slow'.
TheOnlyRick 13th Nov 2008
what if you do the following.
close out of Outlook.
click on START then you should see outlook, Right click on it and go to properties. Select Data Files and delete that other email box from there or move the outlook.pst for the other email account to a different folder. close that out and see that worked.
oz_cast@... 17th Sep 2008
Since I recreated my Outlook account yesterday the mailboxes, and actual problem, has gone away. Everything is back to normal now so I can't really recreate the issue exactly as it was to test your solution.

However that option does look like it could/would have solved my problem. I'll keep it in mind if the problem ever arises again.

Thanks for the reply... I have marked your post as helpful.


EDIT: sorry I just looked at this again and I don't think it would have worked since the mailboxes are actually stored on our Exchange Server and not locally on my pc. Hence they wouldn't show up in the Data Files list.
anthony.sartini@... 18th Sep 2008
Once in your in the registry at your profile at HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\"Your outlook Profile", click on each sub-folder and open the 001f3001 keys to determine which folders are associated with each additional mailbox, and delete the entire sub folder.
tom.johnson@... 13th Oct 2008
I had exactly the problem described here using Outlook 2000 with an old (5.5) version of Exchange Server. I scrolled through the sub folders in HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\ until I saw the entry with the name of the mailbox I was trying to remove. I deleted that subfolder (with Outlook closed) and reopened Outlook and the mailbox was gone.
ismgr@... 10th Sep 2010
-2 Votes
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In case it happens again
You actually want to remove it in the same manner in which you added it.

1. Open Outlook
2. Click Tools -> Email Accounts -> Change -> More Settings -> Advanced
3. Select the mailbox to be removed (e.g. Mailbox - xxxx) -> Click Remove

This will remove the listing for you when it is an Exchange related account.
13th Oct 2008

Replies

He said, they mailbox does not appear on the list. Hence, he can't select it and click remove!
ThumbsUp2 13th Oct 2008
...as ThumbsUp2 pointed out, I wasn't able to remove them using that procedure as the mailboxes were not showing in the list.
anthony.sartini@... 14th Oct 2008
Sorry about that, I had read the post [no need to yell ThumbsUp2 an honest mistake] but missed the line where you said you had tried to retrace your steps and thought you had just tried to remove it by performing the close mailbox - xxxx.
s.moffett@... 14th Oct 2008
1 Vote
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Look in the registry for 001e300a ...
Look in HKCU\software\Microsoft\Windows NT\Windows Messaging Subsystem\Profiles and find the profile name you are working on.

Once there, parse the different keys and look for for a REG_SZ string 001e300a with a value of EMSMDB.DLL (In my case).

At the same time, you will not see the entry 001e660b that usually contains the user common name.

Remove the 001e300a PARENT key with all his entries.

Open Outlook and the undesire mailbox will be gone.
9th Nov 2010

Replies

Posted a duplicate of a 2 year ood fix too!
Kenone 9th Nov 2010
I am using outlook 2010, None of these solutions are working for me, Still I am getting others profile
muthuvelraja@... 18th Mar 2011
0 Votes
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I had same problem. Here is the solution! (outlook 2003)
1. Right Click on the Mailbox you wish to remove
2. Select properties
3. Click on the 'Advanced' button on the General Tab
4. Select the Advanced Tab
5. Highlight the Mailbox you wish to remove if more than one in the list
6. Click on 'Remove'
23rd Nov 2010
0 Votes
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And in Outlook 2010...
Thanks Techie65. Your tip led me to the same thing in Outlook 2010 on an Exchange server, though getting there was a different path:
1. Right click the Mailbox you wish to remove (or your Mailbox).
2. Select DATA FILE PROPERTIES.
3. In the GENERAL tab, click the ADVANCED... button.
4. In the MICROSOFT EXCHANGE dialog, click the ADVANCED tab.
5. In the "Open these additional mailboxes" list, select the one you want to get rid of, and click the REMOVE button.
6. Click OK... OK... OK... OK... until there are no more OK's to click! happy
29th Aug 2011

Replies

I have several other user's mailboxes in my Outlook. Followed techie65's method to remove these mailboxes. As soon as I open my Outlook, all of these mailboxes came back. Did the registry hack, same thing. Recreated the profile, same thing. Where else I can find the settings?
scottkh 9th Nov 2011
0 Votes
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Reply
Same situation, deleted the reg profile and outlook profile, mailboxes still there, and none of them are listed in 'Open these additional mailboxes'.

might have to recreate the entire user profile!
6th Dec 2011
5 Votes
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Got It!
After Following the above steps and failing I removed the full access permission for the effected user from the mailboxes on the exchange server, recreated the outlook profile and no more additional mailboxes.
6th Dec 2011

Replies

That did it - remove the Full Access permission from Exchange 2010 server, open Outlook and attempt to open the mailbox. Outlook sees the lack of permissions and removes it. Then the permission can be reinstated in Exchange.

Many thanks!
martinwtaylor 16th Jan 2012
Only your solution worked, Tried everything that's been noted above and nothing worked. MANY thanks.
RomanoP 8th Apr
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