Error opening attachments in Outlook

When opening an attachment directly from within Outlook you could get an error message saying that it can’t create the file and to that you need check the permissions on the folder you want to save it in.

Solution: Cleaning out the Secure Temporary Outlook Files folder.

Location of the folder:

Outlook 97:      HKEY_CURRENT_USER\Software\Microsoft\Office\8.0\Outlook\Security
Outlook 98:      HKEY_CURRENT_USER\Software\Microsoft\Office\8.5\Outlook\Security
Outlook 2000:    HKEY_CURRENT_USER\Software\Microsoft\Office\9.0\Outlook\Security
Outlook 2002/XP: HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\Security
Outlook 2003:    HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Security
Outlook 2007:    HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Security
Outlook 2010:    HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Security

Stored in OutlookSecureTempFolder registry key.

Exchange 2010 remove from database (fix)

If you find your queues are getting full of NDRs from the postmaster to spammers you can turn off allow non-delivery reports in EMC:

  • Organization Configuration
  • Hub transport
  • Remote domains
  • Default

Enable only ‘Allow delivery reports’ and ‘Display sender’s name on messages’.


If running a single exchange server with hub transport on it you can enable spam filtering.

Personal note:
Expedited manual expressdelisting is available as an option, in case you do not want to wait for the automatic and free expiration.
You will be charged 86 EUR using one of the following payment services.
86 EUR? Not shy guys … 😦

Microsoft Exchange Connectivity Tests (remote)

Have you ever installed an Exchange server and wanted to verify your Internet facing services were setup and configured properly? Things like Exchange ActiveSync, AutoDiscover, Outlook Anywhere (RPC/HTTP), and inbound email:

Exchange 2010 PST export from command line

Simpl in PowerShell:

Add role on server:

New-ManagementRoleAssignment –Role “Mailbox Import Export” –User “username”

Export userpst:

New-MailboxExportRequest -Mailbox "mailboxormailuseridparameter" -FilePath "longpath"

(“longpath”: Write rights to ‘Exchange Trusted Subsystem’ group)