How to reduce file size for email attachment

HOW TO REDUCE FILE SIZE FOR EMAIL ATTACHMENT CODE

For more information about using the Outlook PIA to develop managed Outlook solutions, see the Welcome to the Outlook Primary Interop Assembly Reference on MSDN.

HOW TO REDUCE FILE SIZE FOR EMAIL ATTACHMENT CODE

The Application object in the code must be a trusted Outlook Application object provided by ThisAddIn.Globals. You should use the following code samples in the ThisAddIn class of an Outlook add-in (using Office Developer Tools for Visual Studio). Before you run managed code samples for Outlook 2013, ensure that you have installed the Outlook 2013 PIA and have added a reference to the Microsoft Outlook 15.0 Object Library component in Visual Studio. For Outlook, you can use Visual Studio and the Outlook Primary Interop Assembly (PIA).

NET Framework managed code sample that needs to call into a Component Object Model (COM), you must use an interop assembly that defines and maps managed interfaces to the COM objects in the object model type library. The following managed code samples are written in C# and Visual Basic.

After the loop, if the tooLarge variable is True, the code alerts the user and sets the Cancel parameter to the event handler (which was passed by reference) to True, causing Outlook to cancel the sending of the item. If the sum ever exceeds the size of the maxSize constant, the code sets the tooLarge variable to True, and exits the loop. For each item, the code retrieves the Size property, summing as it loops. In this example, to determine whether the total attachment size is larger than a specific size, the code loops through each attachment in the item's Attachments collection. It's up to your own code in the event handler to determine whether you want to cancel the event you do so by setting theCancel parameter to True if you do wish to cancel the event. The Outlook ItemSend event receives as its parameters a reference to the item being sent, and a Boolean variable that is passed by reference and that allows you to cancel the send operation. The sample code in this topic demonstrates how you can handle the ItemSend event in an Outlook add-in, and in the event handler, cancel the sending of the email message if the combined size of all the attachments is larger than a specific value (2 MB, in this example). Provided by: Ken Getz, MCW Technologies, LLCДЄ given email message can contain one or more file attachments, and you may want to limit the total attachment size in email messages that you send.

This topic describes how you can create a managed add-in for Outlook that cancels sending email if the total attachment size is greater than a fixed limit.

How to reduce file size for email attachment