Réponse:
Bonsoir
Explications:
Hello (le prenom de votre ami) how have you been lately , as we haven't been in contact for a long time. I'm just checking up if there has been any news about you lately. It has been like almost 2 years i think that we haven't seen each other. The reason it's been a long time is that i have lost your email and yesterday I ran into one of our friend and he gave me your email address . So hope you reply to my email and hope to see you soon.
Best wishes , (votre prenom)