I figured out what is happening with my delayed e-mails. It is due to Microsoft Outlook's "Delay Delivery" option. You can locate it by opening an e-mail, click on "Options", then click on "Delay Delivery". Locate the "Delivery options" section and uncheck the "Do not deliver before" box. When I unchecked this box, then I was able to receive several sent e-mails (via SendObject) immediately. I can't figure out how to change this options in Microsoft Access. Any ideas ?