"There won't be any issues with that," Raiola said to Gazzetta dello Sport when asked about the progress of contract negotiations.
"I will meet with [club vice-president] Adriano Galliani and if the day comes when Donnarumma will leave, it will only be to play for a foreign club. He only sees Milan in Italy.
"I won't say anything in particular, but it's clear he is receiving a lot of attention.
"I can only say that he is doing well for Milan and he appreciates all the attention he is receiving. Christian Abbiati has been like a big brother to him."
Donnarumma was with Italy's Under-21 side in the recent international break, but Raiola wants Antonio Conte to consider him as part of the Euro 2016 squad to gain experience with a nod to the next World Cup in Russia.
"I believe Antonio Conte would do well to bring him to the Euros," added the keeper's representative.