Sonicwall Signatures

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  POP3 -- Client Request (TLS Inbound)

Category: PROTOCOLS      

Application: POP3      

Post Office Protocol version 3 (POP3) is an application-layer Internet standard protocol used by local e-mail clients to retrieve e-mail from a remote server over a TCP/IP connection. POP3 and IMAP4 (Internet Message Access Protocol) are the two most prevalent Internet standard protocols for e-mail retrieval. Virtually all modern e-mail clients and servers support both.

This SonicWALL signature identifies legitimate POP3 traffic.

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