I use libero mail: I use it as smtp server for any my equipment (services over raspberry, NAS, duplicati laptop&pc…). I create a random and nonsense username. I must pay attention only to download the mailbox sometimes - I configure thunderbird in order to download automatically the mailbox. NO spam, only the libero.it advertisement - you can create a filter to delete these mail automatically.
PS: I hope, for a near future, duplicati will be more popular in italy 
