FAQ Message stuck in Outbox

Message Stuck in Outbox buttonIt doesn’t happen too often but when a message is stuck in the Outbox it can be a real pain and may prevent you from sending and receiving other emails as well.

Below you’ll find 5 methods to get the message out of the Outbox.

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FAQ Reset Unread Mail Count on Login Screen

On the Windows XP login screen you can easily see how many unread mail you still have in your inbox. This number can be wrong sometimes.

This issue could happen for all sorts of reasons but the most common I come across is that someone else uses MSN Messenger on my machine. The number of his/her unread e-mails then gets added to my unread mail. When you click on the unread mail count on the login screen you can see how many unread mails each logged account has.

While resetting the unread mail count is easy (with the TweakUI Windows XP PowerToy) you also might want to prevent it from ever happening again.

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FAQ Interface Not Registered

When using Word as your e-mail editor you might encounter the error “Interface Not Registered” when trying to send your e-mail. As a result you are unable to send it but you are able to send e-mail when setting Outlook as your e-mail editor. To solve this so you are able to use Word as your e-mail editor close all running Office applications. Then use Start-> Run and type;

Regsvr32.exe %Windir%\System32\Ole32.dll

This will correctly register the ole32.dll file in the registry.

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FAQ Duplicate E-mails: Prevention and clean up tips

Duplicate Emails buttonIt’s probably one of the most annoying things; receiving the same e-mail multiple times. Actually, I’m not talking about just a single e-mail here but basically all your e-mails and not just twice but LOTS of times.

This article discusses the most common configuration issues which lead to e-mail duplication and how to prevent them from happening again.

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FAQ Reading Pane not available in Drafts folder

For some strange reason there the Reading Pane is not available for the Drafts folder in Outlook 2003. If you really need to have a Reading Pane in the Drafts folder you can create a Search Folder to workaround the issue.

Create a Search Folder for the Drafts folder

  1. File-> New-> Search Folder
  2. Select “Create a custom Search Folder” which is at the bottom of the list
  3. Press “Choose”
  4. Give the folder a name e.g. “Drafts”
  5. Press “Browse…”
  6. Deselect the root folder and make sure only the “Drafts” folder is selected
  7. Press OK to return to the “Custom Search Folder” dialog
  8. Press OK and press Yes again to close the notification

You now have created a Draft folder for which you can enable the Reading Pane!

FAQ CRC (Cyclic Redundancy Check) errors on pst-file

CRC (Cyclic Redundancy Check) errors are indicating errors with a specific file and in lot of cases with your hard disk. It doesn't indicate a problem with Outlook itself but a problem with the place on the hard disk where your pst-file is located. When this occurs after you have just copied the pst-file (on disk, from network, from CD, by download) you should first verify that the original source still works and try to copy it again. If this has happened "all of a sudden" like in that it still worked yesterday, the issue can be either software based or hardware based.

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FAQ Cannot delete a message

When trying to delete a message, it could be that Outlook refuses this and shows an error message. Most common error messages are;

“An unknown error has occurred.”


“Messaging interface has caused an unknown error.”

There are 4 easy methods which you can use to solve this for most situations.

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FAQ Contacts are not available in the Outlook Address Book

FAQ Microsoft Outlook Backup Add-in not available

Personal Folders Backup Add-in buttonThe Personal Folders Backup add-in creates backup copies of your .PST files at regular intervals making it easy to keep all of your Outlook folders safely backed up.

Although the download site states that it only works with Outlook 2002, 2003 and 2007, it can actually be made compatible with Outlook 2010 as well with a Registry.

Unfortunately it can’t be made compatible anymore with Outlook 2013, 2016 and 2019, nor can it with Office 365. However, for these versions, alternatives are available as well.

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FAQ AutoArchive not Working

Archive buttonAutoArchive and Archive are options in Outlook to automatically or manually initiate moving of Outlook items to an Outlook Data File (pst-files) based on preconfigured settings. You can set default AutoArchive settings but also overrule them on a per-folder level or via a manual Archive.

In some cases you’ll notice that AutoArchive or Archive is not working as expected even when all settings appear to be correct. Use the steps below to troubleshoot and get AutoArchive and Archive working again.

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