Today I've find my logs file very large (12/15Mb instead the normal 4/6 Mb)
Searching for the problema I've find out the follow lines which repeat a lot
of times...
=====
SMTP (192) Connect FAKEDOMAIN.it [212.131.XXX.XXX:25] (1)
SMTP (192) 220 inside Microsoft ESMTP MAIL Service, Version: 5.0.2195.1600
ready at Mon, 5 Feb 2001 11:09:09 +0100
SMTP (192) >EHLO ps5.pesaroservice.com
SMTP (192) 250-inside Hello [193.70.108.147]
SMTP (192) 250-TURN
SMTP (192) 250-ATRN
SMTP (192) 250-SIZE
SMTP (192) 250-ETRN
SMTP (192) 250-PIPELINING
SMTP (192) 250-DSN
SMTP (192) 250-ENHANCEDSTATUSCODES
SMTP (192) 250-8bitmime
SMTP (192) 250-BINARYMIME
SMTP (192) 250-CHUNKING
SMTP (192) 250-VRFY
SMTP (192) 250-X-EXPS LOGIN
SMTP (192) 250-X-EXPS=LOGIN
SMTP (192) 250-AUTH LOGIN
SMTP (192) 250-AUTH=LOGIN
SMTP (192) 250-XEXCH50
SMTP (192) 250-X-LINK2STATE
SMTP (192) 250 OK
SMTP (192) >MAIL FROM:<>
SMTP (192) 454 5.7.3 Client was not authenticated.
SMTP (192) SMTP_DELIV_FAILED
SMTP (192) >QUIT
=====
Please correct me:
Is this a client machine called "inside" which try to send mail with my mail
server using a null mailfrom ?
If not, can you help to read this log event ?
Thanks for help.
Any links to some web site to learn are welcome !
Thanks to the list. It's a great school !
Piero
Italy
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