شاركها فيسبوك ‫X ماسنجر ماسنجر واتساب تيلقرام مشاركة عبر البريد طباعة WhatsApp uses a "store and forward" mechanism for exchanging messages between two users. When a user sends a message, it is stored on a WhatsApp server, which tries to forward it to the addressee, and repeatedly reques