On Wed, 29 Oct 1997, Hank Nussbacher wrote:
to the customer but the spamming continued. Turns out the user defaults out to me no matter what, so his address was a.b.c.e when coming out of me. For me that is a spoofed address. I then go to block his spoofed address. User then says, it is a valid address and I have no business blocking his IP addresses, whether he has them from me or ISP X. I then say I'll block SMTP
Tell him you do ingress filtering on all your leased lines "for security reasons" to prevent IP spoofing, smurf, etc. Since it's done "for security reasons" tell him an exception is out of the question. Also, as him where it is written that you must accept unwanted IP traffic? The internet is a collection of interconnected autonomous networks, most of which are under no obligation to accept packets from anyone.
complaining to you that I am spamming". Since his dns is located elsewhere and since the IP addresses are not mine, the users aren't complaining to me What do we do in these cases?
Show him your AUP, which was hopefully included as part of the contract with him. Hopefully, it has something like: 3.7 The account holder agrees to not, under any circumstances, post messages to newsgroups, mailing lists, or similar public forums if any of said forums pertain to subjects not directly related to the main topic of the posting or if the posting would be considered inappropriate for any other reason. This applies to both business and non-business oriented postings. Such postings will be considered abuse of FDT systems services. (See 7.0) 3.7a The account holder agrees to not, under any circumstances, send unsolicited mass emailings from any Internet account (at FDT or elsewhere), nor to use FDT services for the collection or distribution of address lists to be used for such purposes. The account holder agrees to not, under any circumstances, associate FDT with any such mass mailings. 7.5 FDT accounts which are locked or terminated as a result of violations of this agreement or any applicable laws will not be eligible for any monetary refund, and may be subject to additional administrative charges. This is part of FDT's AUP (www.fdt.net/AUP) which I lifted from another ISP long ago and have modified a lot. It was not written by an attorney and could probably use better legalease, but it at least gets the point across so customers can't act totally shocked when I delete their account for spamming. I actually do have a lawyer edited version, which I've not gotten around to adopting yet. ------------------------------------------------------------------ Jon Lewis <jlewis@fdt.net> | Unsolicited commercial e-mail will Network Administrator | be proof-read for $199/message. Florida Digital Turnpike | ______http://inorganic5.fdt.net/~jlewis/pgp for PGP public key____