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Detect SMTP server IP address

Manoj Tare

Joined: Feb 04, 2003
Posts: 26
I want to find SMTP service running on a Network .
Currently in my application user has to give SMTP server IP address (which is hardcoded).
I want to give facility to detect SMTP server IP address automatically.
Is there any way to find out the same.
Please give some slutn.
in advance thx
Maulin Vasavada
Ranch Hand

Joined: Nov 04, 2001
Posts: 1873
do u know the host name u mean for the SMTP server and want to find IP? (well that doesnt make sense though )
'coz otherwise knowing nothing we can't probably query where is SMTP server i guess
David Weitzman
Ranch Hand

Joined: Jul 27, 2001
Posts: 1365
If you want to identify the SMTP servers that service incoming mail to a specific domain, you'll want to query for MX records with a library like DNSJava. Note that when a domain has no MX records, you should try the IP of the domain itself.
I agree. Here's the link:
subject: Detect SMTP server IP address
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