Duplicated Emails are sent to users

Hi everybody,

I have a big  CRM messaging Issue , duplicated  emails are flooding users email boxes,  CRM is not aware that emails are sent and   doesnt change their status from  " sending in progress"  to " sent " .

Here are the error messages found in the CRM EMail router machine. 

source : MSCRMEMAIL , Error ID 37083 

The  set stat  action has failed for the e-mail message ....

source : MSCRMEMAIL , Error ID 23521 

Can not confirm the email message mentioning the  object  "test email" in the mailbox SMTP "https://crm.entreprise.com" to be delivered to "exchnage.server.com"

Can you help me please?

BR