These articles are in the Developer and Code Sample categories. These pages often contain only the code, with very little instructions and assume the reader has some VBA knowledge. See How to use the VBA Editor if you need help using VBA.
Additional code samples are at VBA Code Samples
Working with All Items in a Folder or Selected Items
These samples contains the basic code for working with all items in a selected folder or selected items in a folder.
Use VBA to Scan to Email
How to scan a document or image and attach or embed into an Outlook email using VBA and the Windows Image Acquisition Library (WIA).
Automatically block off time before and after meetings
Use a macro to automatically add travel time to new meetings on your Outlook calendar.
Foward a Message and CC the Original Recipients
A visitor to the Microsoft Answers forum asked about forwarding a message and automatically CCing it to the original recipients.
Open All Hyperlinks in an Outlook Email Message
Use an Outlook macro to open every hyperlink in the selected email message. A version of the macro will open hyperlinks in every message in the selected folder.
Add Attachments and Set Email Fields During a Mail Merge
Use an ItemSend macro to set fields on email merges and include attachments.
Use VBA to Create a List of Exchange GAL Members
Use an Outlook macro to create a list of users in the Exchange Global Address List or a list of member of a distribution group in the GAL.
Import meetings from a CSV or XLSX file
Use a macro to import data from a CSV or Excel xlsx file to create meeting requests or appointments.
Select Multiple Calendars in Outlook
Use VBA to select multiple calendars in overlay mode. Can deselect iCloud calendars using this code. Code Sample included.
Use a Default Subject for New Messages
How to use a VBA macro to insert a predefined text into the subject field of a new messages. Method works with any Outlook item type.
Save email message as text file
Use an Outlook macro to save the selected message as a text file, or save the selected messages in a single text file.
Shortcuts to open Outlook folders
Outlook doesn't support creating shortcuts to folder on the Quick Access toolbar (QAT) or ribbon, but you can put macro on the QAT or ribbon that opens a folder.
Delete duplicate messages using a macro
Use a macro to clean up duplicates messages in an Outlook folder.
Fix the Outlook Folder Type after Exporting an IMAP Account
After importing IMAP folders to Personal Folders or an Exchange mailbox, messages in the imported folder are hidden.
Merge or Split Conversations
A major complaint about Outlook's conversation view is the inability to split and merge conversations. While Outlook doesn't offer the capability, you can use a macro to merge or split conversations.