Email Command (email fetching) creates Request for any email even without the special cahracter

Email Command (email fetching) creates Request for any email even without the special cahracter

Hi,
 
I have setup incomming mail server using POP and enabled email commands.
I noticed that ServiceDesk plus creates a new Request of all emails even if it does not contain the 'E-mail Subject contains' field value.
 
What I understand is that the subject line should contain the specified characters before it parses the email, otherwise, it will be ignored and nothing is done.
 
Did I miss any other setting or this is a normal behavior?
 
JC

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