You'll know if this translation is right when an expert evaluates it. Until now it's just translated, but it can be wrong, just wait it to be accepted ok?
I have corrected the translation so that at least the Dutch sentence is OK. I'm not entirely sure if it reflects 100% of the meaning of the original Italian text though.
As a little help, the Dutch text now means in English:
'This is my contact address: aaaaa@msn.com it's OK if you [plural] want to add me, but (it's) on your [plural] own risk.'