Port
Map
Recent
About
API
Submit a port
✓
Port 46
🪦
Well-known
← All ports
+ Add entry
⚑ Report a correction
Service
mpm-snd
Protocol
TCP
Status
🪦 Obsolete — no longer in active use
Description
Message Processing Module — early ARPANET-era mail relay protocol (default send port). Superseded by SMTP.
RFC
RFC 759
—
Internet Message Protocol
Citations
IANA registry
Report a correction — Port 46
×
What's wrong?
Choose one…
Incorrect service / software
Wrong or missing protocol
Outdated or obsolete
Bad or broken source link
Duplicate entry
Other
Details (optional)
Email (optional — only if you want a reply)
Prove you're human
↻
Send report
Submit a port
×
Your name
Email
Port number or range (e.g.
443
or
5000-5100
)
Protocol(s)
TCP
UDP
SCTP
DCCP
Application name
Description — what the service is and what it does
Source(s) — URL proving this port belongs to this software
+ Another source
Prove you're human
↻
Submit for review
PortMap
PortMap