Some questions on Mass E-mailings module

Hello,
I’m a new Dolibarr user and I have some questions regarding using “Mass E-mailings” module.
Hope someone could help me.

  1. I created a New emaling and added a couple of recipients to test the sending (one of these with a wrong email address).
    In the text of the email message I put the “unsubscribe link” and the “Track mail opening link”;

  2. I configured the addresses on this way:
    Sender: info@mydomain.com
    Errors-to: noreply@mydomain.com
    Both the addresses are fully working;

  3. I sent the emailing via browser;

  4. The email with correct address is sent correctly (on dolibarr I can see its status to “Sent” and when I opened it from my mailbox its status turns to “Read”), but the email with wrong address remains on “Sent” status, no error is shown. In mailbox “noreply@mydomain.com” there is no mail at all. Did I do it correctly or I made something wrong?

  5. The last question is about unsubscribing from Emailing. If I click the link for unsuscribe from the email I received, dolibarr shows it as “Don’t contact anymore” and it prohibites to send further emailings to this address. How can I reset its status to revoke the unsubscription?

Thank you for your time.

Luke
Dolibarr version 8.0.3