Is port 1352 (Lotus Notes) dangerous?

Port 1352 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 1352 be open on my firewall?

Port 1352 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 1352 use?

Port 1352 (Lotus Notes) uses the TCP transport protocol and falls under the Email category.

:1352 (TCP)

Lotus Notes

Medium Risk

TCP — Email

Port Overview

Port Number 1352

Service Name Lotus Notes

Transport Protocol TCP

Category Email

Security Risk Medium

Port Range Registered (1024-49151)

What is Port 1352?

Port 1352 is used by IBM Lotus Notes and Domino server for client-server communication. It handles email, calendar, and collaborative application traffic between Notes clients and Domino servers. Organizations running Lotus/HCL Notes infrastructure require this port to be open.

TCP Email Commonly Used

Security Considerations

Port 1352 (Lotus Notes) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.

Recommendation: Keep the service updated. Monitor logs for unusual activity.

Related Ports — Email

24 Private Mail System 25 SMTP 26 RSFTP 50 RE-MAIL-CK 58 XNS-MAIL 109 POP2 110 POP3 143 IMAP

Related Terms

ARP FTP HTTP ICMP IMAP NTP