- Require TLS and authenticated submission.
- Make sure the server is not an open relay.
- Publish SPF, DKIM and DMARC for the domain.
Port 1398: Video Active Mail
Port 1398 is assigned by IANA to video-activmail (Video Active Mail).
1398
How video-activmail works
EmailMail servers hand messages to each other over port 1398, one hop at a time, until the recipient's server.
- Transport
- TCP · UDP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Registered (1024-49151)
- Category
Is port 1398 dangerous?
We have no specific security note for port 1398. Its risk depends on the program actually listening on it. General advice for email services:
IANA registry entries for port 1398
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| video-activmail | 1398 | TCP, UDP | Video Active Mail | - | - |
// source: IANA service name and port number registry
Which program uses port 1398, and is it reachable?
Linux
sudo ss -ltnup 'sport = :1398' # process listening on 1398
sudo lsof -nP -i :1398macOS
sudo lsof -nP -i :1398
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1398 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 1398 netstat -ano | findstr :1398
From another machine
nmap -p 1398 -sV <host> sudo nmap -sU -p 1398 <host> nc -zv <host> 1398
Block it in the firewall
sudo ufw deny 1398/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 1398" -Direction Inbound -LocalPort 1398 -Protocol TCP -Action Block # Windows
What is port 1398 used for?
Port 1398 is assigned by IANA to video-activmail (Video Active Mail).
Is port 1398 TCP or UDP?
Port 1398 is registered for TCP and UDP.
Is it safe to open port 1398?
It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Require TLS and authenticated submission.
How do I check if port 1398 is open?
On Linux run "ss -ltnup 'sport = :1398'", on macOS "lsof -nP -i :1398", and on Windows "netstat -ano | findstr :1398" to see the local process. From another machine, "nmap -p 1398 <host>" shows whether it is reachable.