My First Leather Bag. - Help!

Hello! My partner just got me my first ever purse, it is a Dooney & Burke w/ Supple Itallian Leather? I am reading that it can't get wet, is that true? Also, what can I get to rub on it to help it last a long time but also protect it if it does get wet. For example If it is snowing and it gets wet due to the melted snow from my clothing, or just rain, will it damage it? This is now my every day every occasion bag and I'd like to take care of as best I can. Thank you in advance.