Microsoft IIS Log File Format

Topic Last Modified: 2007-05-17

The following describes the Microsoft Internet Information Services (IIS) log file format:

Information is written to a comma-delimited ASCII text file.
Data is fixed. You cannot customize the log.
There are multiple records for a single transmission.

For a complete list of entries, see Microsoft IIS Log File Entries.

The following is an example of the Microsoft IIS log file format:

	Copy Code
10.123.12.3, Nwtraders.com, 8/18/06, 13:17:37, SMTPSVC1, MAIL01, 10.200.200.1, 90, 42, 0, 250, 0, MAIL FROM, -,FROM:<someone@Nwtraders.com>, 10.123.12.3, Nwtraders.com, 8/18/06, 13:17:37, SMTPSVC1, MAIL01, 10.200.200.1, 0, 32, 0, 250, 0, RCPT TO, -, TO:<someone@example.com>, 10.123.12.3, Nwtraders.com, 8/18/06, 13:17:37, SMTPSVC1, MAIL01, 10.200.200.1, 270, 480, 101, 250, 0, DATA, -, 0019E3517201287MAIL01, 10.123.12.3, Nwtraders.com, 8/18/06, 13:17:37, SMTPSVC1, MAIL01, 10.200.200.1, 81, 4, 52, 0, 541, QUIT, -, MAIL01,

Copy Code

10.123.12.3,   Nwtraders.com,  8/18/06,  13:17:37,  SMTPSVC1, MAIL01,  10.200.200.1,  90, 42,  0,  250,  0,  MAIL FROM,  -,FROM:<someone@Nwtraders.com>,
10.123.12.3, Nwtraders.com, 8/18/06, 13:17:37, SMTPSVC1, MAIL01, 10.200.200.1, 0, 32, 0, 250, 0, RCPT TO, -, TO:<someone@example.com>,
10.123.12.3, Nwtraders.com, 8/18/06, 13:17:37, SMTPSVC1, MAIL01, 10.200.200.1, 270, 480, 101, 250, 0, DATA, -, 0019E3517201287MAIL01, 
10.123.12.3, Nwtraders.com, 8/18/06, 13:17:37, SMTPSVC1, MAIL01, 10.200.200.1, 81, 4, 52, 0, 541, QUIT, -, MAIL01,