Back POP3 Azerbaijani POP3 Danish POP3 English POP3 Esperanto POP3 Finnish POP3 Galician POP3 Hungarian POP3 Armenian Post Office Protocol versi 3 ID POP3 Japanese
| Sloj | Protokol |
|---|---|
| Aplikacijski | DNS, DHCP, TLS/SSL, TFTP, FTP, HTTP, IMAP, IRC, NNTP, POP3, SIP, SMTP, SNMP, SSH, Telnet, BitTorrent, RTP, rlogin, … |
| Transportni | TCP, UDP, DCCP, SCTP, IL, RUDP, |
| Mrežni | IP (IPv4, IPv6), ICMP, IGMP, ARP, RARP, … |
| Podatkovni | Ethernet, Wi-Fi, Token ring, PPP, SLIP, FDDI, ATM, DTM, Frame Relay, SMDS, … |
POP3, od engl. Post Office Protocol version 3, uobičajeni je protokol za preuzimanje elektroničke pošte s poslužitelja na mrežama koje koriste internet protokol.