Has nonyone noticed suspisious activity comeing from level3.com I know they have a agreement with microsoft http://www.level3.com/press/2053.html But last night something strange happened. An ip owned by level3 tryed to relay off my mail server last night. Take a look at my mail server log:

5/14/03 11:26:35 PM - ( 34) HELO ArGoSoft
5/14/03 11:26:35 PM - ( 34) 250 Welcome [65.57.63.40], pleased to meet you
5/14/03 11:26:35 PM - ( 34) MAIL From: <jackbran1@ArGoSoft>
5/14/03 11:26:36 PM - ( 34) 250 Sender "jackbran1@ArGoSoft" OK...
5/14/03 11:26:36 PM - ( 34) RCPT To:<[email protected]>
5/14/03 11:26:36 PM - ( 34) 550 User not local. Authentication required for relay
5/14/03 11:26:36 PM - ( 34) RCPT To:<[email protected]>
5/14/03 11:26:36 PM - ( 34) 550 User not local. Authentication required for relay
5/14/03 11:26:37 PM - ( 34) QUIT
5/14/03 11:26:37 PM - ( 34) 221 Aba he
5/14/03 11:26:37 PM - SMTP connection with 65.57.63.40 ended. ID=34
This hapened last night, all times are EST (GMT -05:00) I noticed when signing into hotmail about a few weeks ago, a conection to level3 and looked them up, thats when I found they have a contract with microsoft. Ive been searching seems im not the only one:

http://www.webmasterworld.com/forum11/1134.htm

Trying whois -h whois.arin.net 65.57.63.40

OrgName: Level 3 Communications, Inc.
OrgID: LVLT
Address: 1025 Eldorado Blvd.
City: Broomfield
StateProv: CO
PostalCode: 80021
Country: US