just curious if there any tool that I can just give a mail server address/ip to and that would give me all features that mail server supports.
Like: does it support imap/pop3? Does it support tls/ssl/ntlm encryption? etc....
thanks:)
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1You seem to be confusing the capabilities with the protocols. There is no definition of what an 'email server' is and no such agreed protocol as 'email' - they are a family of different protocols. – symcbean Feb 09 '11 at 12:04
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Services can usually be determined by a quick port scan, but this can (and should) trigger any decent IDS into shutting you out of the network completely.
For checking the authentication methods, a simple EHLO should list the relevant details:
C:\Users\mark.henderson>telnet enetsxs1 25 220 enetsxs1.com.au Microsoft ESMTP MAIL Service ready at Wed, 9 Feb 2011 15:42:09 +1100 ehlo 250-enetsxs1.com.au Hello [192.168.161.140] 250-SIZE 10485760 250-PIPELINING 250-DSN 250-ENHANCEDSTATUSCODES 250-AUTH NTLM LOGIN 250-8BITMIME 250-BINARYMIME 250 CHUNKING
Mark Henderson
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3While that will give a fair bit of information about the SMTP service it will not tell you anything about other protocols, such as IMAP and POP3, or even if they are implemented. Each protocol will need to be tested separately. – John Gardeniers Feb 09 '11 at 07:04
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@John - the port scan will give you a reasonably good idea if the ports are open at least - so that's a start – Mark Henderson Feb 09 '11 at 07:21