أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Depend on your business need.
POP3. Download the mail from server.
IMAP: Working in sync mode Email.
POP simply downloads email to your computer, and usually (but not always) deletes the email from the remote server
IMAP store the email on a remote server