nanog mailing list archives
Re: Despamming wholesale dialup
From: Terence <terry () tdce com au>
Date: Mon, 2 Nov 1998 21:26:09 +1000 (EST)
Block port 25 (only) from all "open modem banks" (TM) to my SMTP servers. If implemented on a large enough scale, the modem user will be 'encouraged' to use the SMTP server supplied with their account. Make each dialup customer go through, and be authenticated by their own SMTP server.
How about putting a port 25 redirect on your modem bank? (Catch it coming in, send to your sendmail machine, reject stupid to: lines and idiotic from: lines, etc, etc. Maybe tag the email with an ident from your own system, and make spam tracking real easy...) Once many isp's stop their users from using other people's resources for spam, then maybe the practise will cease? TERRY
Current thread:
- Re: Despamming wholesale dialup Terence (Nov 02)
- <Possible follow-ups>
- Re: Despamming wholesale dialup mark (Nov 02)
- Re: Despamming wholesale dialup J.D. Falk (Nov 02)
- Re: Despamming wholesale dialup lists (Nov 02)
- Re: Despamming wholesale dialup Terence (Nov 02)
- Re: Despamming wholesale dialup Derek Balling (Nov 02)
- Re: Despamming wholesale dialup Dean Anderson (Nov 02)
- Re: Despamming wholesale dialup Steven J. Sobol (Nov 02)
- Re: Despamming wholesale dialup Randy Bush (Nov 02)
- Re: Despamming wholesale dialup Jared Mauch (Nov 02)