The articles listed below contain VBA code samples. Additional code samples are listed at Developer Samples
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).
Create a custom Send to... shortcut
How to create your own send to shortcut that uses your Outlook stationery and signature. Customize the shortcuts to include the email addresses and more.
Delete folders using a macro or PowerShell
Use an Outlook macro or PowerShell script to bulk delete folders from Outlook.
Create a custom field for Outlook messages
How to create a custom field to mark messages that were responded to in Microsoft Outlook.
Use PowerShell to Export and Import Categories
How to use PowerShell to export, import or merge categories in different Outlook mailboxes.
Read MAPI properties not exposed in Outlook's Object Model
How to read MAPI properties that are not exposed in the VBA Object model using the Property Accessor object.
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.
Run all Outlook Rules on Startup
Use an Application Startup macro to run Outlook's client side rules automatically.
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.
Enable or Disable an Outlook Rule using Reminders
Do you want Outlook to run certain rules during specific time periods, like only overnight, then turn them off when you are in the office? You can use VBA and task reminders to turn your rules off and on.
Create a List of Meeting Attendees and Responses
How to get a list of Outlook Meeting attendees and their responses using VBA. This code sample gets the appointment details and attendees (along with their responses) and inserts it into a new Outlook message form, which you can print, send or copy the data fir use in other applications.
Mark Sent Items as Read After Copying with a Rule
When you use rules to move sent messages, the sent items are not marked read when they are copied to other folders. You need to VBA to mark the messages read.
How to Open Outlook Templates and Files using Toolbar Buttons
How to create a toolbar button in Outlook 2007 or Outlook 2010 to open templates and files and disable the security warning dialog that displays before the template or files opens.