Port 5108VPOP3 Webmail

VPOP3 Mail Server Webmail provides a web-based interface for users to access their email hosted on VPOP3 servers. It enables convenient email management via standard web browsers, offering features such as sending, receiving, and organizing emails without requiring dedicated email client software..

transport
tcp

single transport

in transit
cleartext

payload readable on path

assignment
unofficial

used by convention

risk
4/10

caution

lookups
7,564

rank 673 of 993 · top 68%

Technical Details

what runs on :5108

VPOP3 Mail Server Webmail is an interface component of the VPOP3 mail server, designed to facilitate access to mail through HTTP/HTTPS via a web browser. Operating on port 5108 by default, it functions similarly to standard webmail services, connecting to the underlying POP3/SMTP services managed by the VPOP3 server.

The webmail interface interprets user actions over stateless HTTP(S) connections, providing functionalities such as folder management, viewing messages, composing new mail, managing contacts, and handling attachments. The server component processes these requests, interacts with the internal mail storage, and communicates with SMTP servers for outbound email delivery.

Depending on configuration, this port can be unsecured (HTTP) or encrypted via SSL/TLS (HTTPS), though by default encryption may not be enabled. It typically runs on private, internal networks but can be exposed to external access, requiring careful security considerations.

Security Information

exposure of :5108

risk score

4/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

web services averages 3.9 across 112 ports — this one sits 0.1 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

unofficial

used by convention, not registered — what answers here varies by deployment

reachable over

tcp

every listening transport is another surface to filter at the edge

security overview

Common vulnerabilities include:

  • Lack of encryption: If accessed over unencrypted HTTP, sensitive credentials and message content can be intercepted.
  • Weak authentication: Use of easily guessed or default passwords increases exposure to brute-force attacks.
  • Cross-site scripting (XSS): Webmail interfaces are prone to injection attacks if input is not properly sanitized.
  • Outdated software: Running obsolete versions can introduce known exploits, including remote code execution or information disclosure.

Mitigations include:

  • Enabling SSL/TLS encryption to protect data in transit.
  • Enforcing strong authentication, potentially combined with multi-factor authentication.
  • Keeping the VPOP3 server and webmail components updated with the latest security patches.
  • Restricting access to trusted networks or over VPNs.
  • Implementing web application firewalls (WAFs) to filter malicious traffic.
  • Regularly auditing logs to detect suspicious activity.

the 8 most looked-up other ports in web services — 112 ports carry that label.

risk mix of the 8 listed

  • safe13%
  • caution88%

0 of 8 encrypted