Taskbar: What is "you have unopened mail"?

[Ozark Mama]

On the taskbar, next to the Outlook icon, there is an icon that looks like an
envelope. It reads "You have new unopened mail." What is it? When it
appears, I check my inbox and unread mail but there is never anything there.

 

[Brian Tillman]

On the taskbar, next to the Outlook icon, there is an icon that looks
like an envelope. It reads "You have new unopened mail." What is
it? When it appears, I check my inbox and unread mail but there is
never anything there.

When Outlook detects that a message has been received, if you have the
option enabled, it will display this icon in the notification area of the
system tray.

 

[Ozark Mama]

When Outlook detects that a message has been received, if you have the
option enabled, it will display this icon in the notification area of the
system tray.

 

[Brian Tillman]

If Outlook is detecting a message, where is it? I do not understand
why it keeps telling me there is an unread message when I can't find
one anyplace.

Do you have any rules? Have you looked in the Junk E-mail folder?