The PR_MESSAGE_SIZE property contains the sum, in bytes, of the sizes of all properties on a message object.
| Header file: | MAPITAGS.H |
| May be exposed by: | Message objects |
| Identifier: | 0x0E08 |
| Property type: | PT_LONG |
| Property tag: | 0x0E080003 |
It is recommended that message objects expose the PR_MESSAGE_SIZE property. The message size indicates the approximate number of bytes transferred when the message is moved from one message store to another. Being the sum of the sizes of all properties on the message object, it is usually considerably greater than the message text alone.
Most message store providers compute the PR_MESSAGE_SIZE property for messages that they handle. However, some message store providers do not support this property. In any case, PR_MESSAGE_SIZE is not available until the IMAPIProp::SaveChanges or IMessage::SubmitMessage method has been called.
Message Properties, PR_ATTACH_SIZE