original: POP and IMAP (Internet Message Access Protocol) are the two most prevalent Internet standard protocols for e-mail retrieval.
simplifications: POP and IMAP (Internet Message Access Protocol) are the two most common Internet standard protocols for e-mail retrieval. POP and IMAP are the two most common Internet standard protocols for e-mail. POP and IMAP are the two most used Internet protocols for e-mail. The two main Internet standard protocols for e-mail retrieval are POP and IMAP. POP and IMAP (Internet Message Access Protocol) are the most popular Internet standard protocols for e-mail retrieval. IMAP is Internet Message Access Protocol. POP and IMAP are the two most common Internet standard protocols for e-mail retrieval. POP and IMAP are the two most common Internet standard protocols for e-mail retrieval. POP and IMAP are the two most coomon Internet protocols for e-mail retrieval. POP & IMAP (Internet Message Access Protocol) are the two standard protocols for email recovery. POP and IMAP (Internet Message Access Protocol) are the two most common Internet standard protocols for e-mail scanning.