← Port Encyclopedia
143
IMAP
TCP
Email High Risk
Internet Message Access Protocol — email access in cleartext, credential interception

🔍 How to Scan Port 143

nmap -sV -p 143 target
nmap -sV -sC --script=banner -p 143 target
nc -zv target 143

🛡️ Security Considerations

  • Scan port 143 with nmap -sV to identify the exact service and version
  • If IMAP is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit imap to find known exploits
  • Monitor traffic on port 143 with Wireshark or tcpdump for anomalies
  • Ensure the service is patched to the latest version to prevent known CVE exploitation

🔗 Related Email Ports

Port 25
SMTP
Port 110
POP3
Port 465
SMTPS
Port 587
SMTP-Submission
Port 691
MS-Exchange
Port 993
IMAPS
Port 995
POP3S
Port 2525
SMTP-Alt
Port 7071
Zimbra
Port 7078
Zimbra-LMTP

📍 Nearby Ports

Port 138
NetBIOS-DGM
Port 139
NetBIOS-SSN
Port 140
Port-140
Port 141
Port-141
Port 142
Port-142
Port 144
Port-144
Port 145
Port-145
Port 146
Port-146
Port 147
Port-147
Port 148
Port-148
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