North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: backscatter hosts
Quoting Steven Champeon ([email protected]): > > It's not really my business why a hotmail.com MX accepted mail it > couldn't deliver. I could care less /why/. It's up to hotmail to fix > their systems - I don't care how they perform that background check on > quota. Exactly. > > It's my business that over the past sixty days, we've had to reject over > 23K of these, and had rejected some 130K in three weeks during March, at > the peak of the joe job. At one point, backscatter accounted for 70% of > my inbound email traffic on one host. Almost made the usual spam and > virus look like background noise. > 36K backscatter rejects from hotmail yesterday but only 2K from AOL. AOL has really got their act together compared to hotmail, verizon, comcast, and the like. May 18 00:00:05 mx1 postfix/smtpd[11977]: 6F8F315DC0: reject: RCPT from mc1-s21.bay6.hotmail.com[65.54.163.161]: 550 <[email protected]>: Recipient address rejected: User unknown; Probably forged by Alan Ralsky; from=<> to=<[email protected]> proto=ESMTP helo=<mc1-s21.hotmail.com> It was 80K daily from hotmail till I dropped the MX records for 4 of the domains being forged. If anyone would like to test their capability to reject 1+ million a day I can point the MX records to your servers. :-) John Capo Tuffmail.com
|