# WHATPORT(1049)

## NAME

port 1049 — td-postman (Tobit David) — IANA-registered to Tobit David's Postman messaging component; almost never seen outside German SMB networks.

Protocol: TCP/UDP  
IANA registry

## DESCRIPTION

IANA assigns 1049 to "td-postman — Tobit David Postman VPMN", a component of Tobit Software's David groupware suite, a German unified-messaging product that combines email, fax and telephony for small and mid-size businesses. The registration dates from the era when David was widely deployed in German-speaking Europe; outside that market you will effectively never meet the real service. Nmap's frequency data puts 1049 at roughly 0.2% of scanned hosts, and a listener you find there is far more likely to be an unrelated application that grabbed a free port above 1024 than a Tobit server. Identify it by its banner before assuming the registration is what you are talking to.

## EXPOSURE

**Expose with care.** A proprietary LAN messaging component with no public security track record — keep it on the internal network, and if you find something listening here, fingerprint it before deciding anything.

## CHECK

```sh
nmap -Pn -sV -p 1049 TARGET
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml) (iana.org)
- docs — [Nmap service frequency database (nmap-services)](https://svn.nmap.org/nmap/nmap-services) (svn.nmap.org)

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HTML: <https://whatport.net/1049/> · JSON: <https://whatport.net/1049.json> · full dataset: <https://whatport.net/ports.json>