W3C Extended Log File Format

• This is the default logging format for SMTP, as well as other IIS services.
• Data is variable; you can choose what you want to track.
• This format is a good option for limiting log size.
• Information is written to an ASCII text file.
• This format includes some field options that apply to the Web and FTP services only.
• There are multiple entries for a single transmission.

Click a link to see a complete list.

1997-08-18  13:17:37  10.321.255.1  Microsoft.com  MAIL01,   10.200.200.1  MAIL FROM  -  -  250  -  357  0  90  -  -  -  - 
1997-08-18 13:17:37 10.255.255.1 Microsoft.com SMTPSVC1 MAIL01 10.200.200.1 RCPT TO - +TO:+<terry@nwtraders.microsoft.com> 250 0 0 33 0 - - -
1997-08-18 13:17:37 10.255.255.1 Microsoft.com SMTPSVC1 MAIL01 10.200.200.1 DATA - 001b60731171d87 250 0 101 1209 250 0 - - -
1997-08-18 13:17:37 10.255.255.1 Microsoft.com SMTPSVC1 MAIL01 10.200.200.1 QUIT - Microsoft.com 0 3215 52 4 291 0 - - -