By default, IMAP only downloads the headers, not the full e-mail items. To change the send/receive to download the full items, follow these steps: 1. On the Tools menu, click Send/Receive, Send/Receive Settings, and then Define Send/Receive Groups.
2. Click a group that contains your IMAP account, and then click Edit.
3. Under Accounts, click the IMAP account.
4. In the list, select the check box for each folder you want to include when checking e-mail, and then select Download complete item including attachments.