Hi Pam,

Here some ideas:

you can Check the  Activity Log to check what happened.

One way to tell if the message was save on send is by looking for the
following field in the destination mail message.
 
$KeepSent is field stored in a message.
 
If person A sends an email to person B with "Save Sent Mails -Always"
option, person B's received mail will have this field present in the
document properties.
 
If person A sends an email to person B with "Save Sent Mails -Never"
option, person B's received mail will NOT have this field present in th
document properties.
 
But,
If person A sends an email to person B with "Save Sent Mails -Ask Me"
option, person B's received mail will still have this field present in
the document properties.

Thank you

Susana