Which two protocol are used for the retrieval of email? (Choose two)

ICAP (Internet Content Adaptation Protocol) is used for content adaptation services such as virus scanning or content filtering proxies, not for email retrieval.

SMTP (Simple Mail Transfer Protocol) is used for sending and relaying email between mail servers, not for end-user retrieval of messages.

IMAP (Internet Message Access Protocol) allows a client to access and manage email directly on the server, supporting features like folders, flags, and partial message retrieval without necessarily downloading the full message.

POP3 (Post Office Protocol version 3) retrieves email by downloading messages from the server to the local client, typically removing them from the server afterward - both protocols serve the retrieval function but with different storage models.

SNMP (Simple Network Management Protocol) is used for monitoring and managing network devices and has no role in email retrieval.