Remote Version Checking through SMTP/POP3/IMAP4
How can I tell what build is my Windows/Exchange server?
It’s quite easy to forget which builds your servers are running. Here’s a quick way of telling which OS build and Exchange version is running on a remote server:
TELNET to the SMTP port (25) and look at the banner returned.
5.0.2195 – Windows 2000
6.0.3663 – Windows 2003 RC1
6.0.3718 – Windows 2003 RC2
6.0.3790 – Windows 2003 RTM
TELNET to the SMTP/POP3/IMAP port (25/110/143) and look at the banner returned.
6.0.6249.0 – Exchange 2000 SP3
6.5.6728.0 – Exchange 2003 Beta 1
6.5.6803.0 – Exchange 2003 Beta 2
6.5.6851.0 – Exchange 2003 RC0
6.5.6595.0 – Exchange 2003 RC1-Candidate
6.0.3790.0 – Exchange 2003 RTM
Note: The dot build (italicized) reported by the Exchange protocols will not normally reflect the exact build number you installed. This is because dot builds only contain the actual files changed/fixed since the major version was released.
You might also want to read the following related articles:
Block Incoming Internet Mail to Specific Users or Groups
Send Mail (from the Tools and Scripts section)
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