[SD-User] I: Delivery Status Notification

[sandro_i7ale at alice.it]

Received the following message. Checked on QRZ.Com and no email address shown in the N9GG page.
Any idea?
73Sandro, i7ALE




  ----Messaggio originale----
 
Da: postmaster at alice.it
 
Data: 30-mar-2020 20.35
 
A: <sandro_i7ale at alice.it>
 
Ogg: Delivery Status Notification
 

 
 - These recipients of your message have been processed by the mail server:
 
robotgrant at yahoo.com; Failed; 4.4.7 (delivery time expired)