How to enter and leave Italy after applying for the first residence permit

Holders of the postal receipt for the first residence permit application can leave and re-enter Italy regularly only with a valid (not expired) multi–entry visa for Italy (D visa)

BE CAREFUL: starting from the 5th of April 2010 the multi-entry D visa entitles its holder to visit Schengen countries for 90 days every 180 days, provided that the visa is still valid.

In any case, for travelling to other countries that are not Schengen, once you are in Italy, you are strongly recommended to verify with the embassy/consulate of the country you are planning to go to, if you need a visa for entering, according to your citizenship and your current domicile.