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Just curious:

nmap scan shows me the UDP port 1049 open, and label it as td-postman.

What could be using the UDP port 1049? (search on td-postman reveals me some vpmn stuff and searching it by that name does not bring me anything..)

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Check Daniel Beck's comment – Sathya Aug 27 '12 at 8:32
My bet is someone just randomly chose port 1049. – David Schwartz Aug 27 '12 at 8:33

It's assigned to German Tobit Software's David product as per the IANA reference of assigned ports.

Service Name   Port Number Protocol          Description                               Assignee                                               Contact 
td-postman         1049        tcp    Tobit David Postman VPMN     [Franz_Josef_Leuders]                              [Franz_Josef_Leuders]
td-postman         1049        udp    Tobit David Postman VPMN     [Franz_Josef_Leuders]                              [Franz_Josef_Leuders]
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