POP Inspector Overview
Type |
Inspector (service) |
Usage |
Inspect |
Instance Type |
Multiton |
Other Inspectors Required |
|
Enabled |
|
Post Office Protocol version 3 (POP3) enables email clients to retrieve messages from a remote POP3 server. A POP3 server uses TCP port 110 for insecure sessions or TCP port 995 for POP over SSL/TLS.
The pop
inspector detects POP traffic and analyzes POP commands and responses.
The pop
inspector can identify the command, header, and body sections of POP messages,
and extract and decode multi-purpose internet mail extensions (MIME) attachments.
The pop
inspector processes MIME attachments,
including multiple attachments and large attachments that span multiple packets.
The pop
inspector identifies and adds POP messages to the Snort allow list.
When enabled, intrusion rules generate events on anomalous POP traffic.