Issue in the email sending using a Campaign

Hi all,

I faced a problem sending email via Campaign.

Last week I created a new Campaign using a test marketing list, which contains three contacts. One of them is a contact with my personal gmail address.

Than I created a new mail  (Campaign Activity) for that campaign and I have sent it.

Two contacts received the mail, but my contact has never received it.

Could you help me with this mistery? I add that I tried to send a common email (Activity) to that contact using the CRM and I received it without problem.

Thanks for your collaboration,

Fabio