nanog mailing list archives
Re: ISP port blocking practice
From: Dan White <dwhite () olp net>
Date: Fri, 23 Oct 2009 17:15:45 -0500
On 23/10/09 17:58 -0400, James R. Cutler wrote:
Blocking the well known port 25 does not block sending of mail. Or the message content.
It does block incoming SMTP traffic on that well known port.
I think the relevant neutrality principle is that traffic is not blocked by content.
My personal definition doesn't quite gel with that. You're deciding for the customer how they can use their connection, before you have any evidence of nefarious activity. Would you consider restricting a customer's outgoing port 25 traffic to a specific mail server a step over the net neutrality line? -- Dan White
Current thread:
- Re: ISP port blocking practice, (continued)
- Re: ISP port blocking practice Chris Boyd (Oct 23)
- Re: ISP port blocking practice Jack Bates (Oct 23)
- Re: ISP port blocking practice Steve Bertrand (Oct 23)
- Re: ISP port blocking practice Michael Peddemors (Oct 23)
- Re: ISP port blocking practice Steve Bertrand (Oct 23)
- Re: ISP port blocking practice JC Dill (Oct 24)
- Re: ISP port blocking practice Justin Shore (Oct 23)
- Re: ISP port blocking practice Lee Riemer (Oct 23)
- Re: ISP port blocking practice James R. Cutler (Oct 23)
- Re: ISP port blocking practice Dan White (Oct 23)
- Re: ISP port blocking practice Justin Shore (Oct 23)
- Re: ISP port blocking practice Dan White (Oct 23)
- Re: ISP port blocking practice Owen DeLong (Oct 23)
- Re: ISP port blocking practice Patrick W. Gilmore (Oct 24)
- Re: ISP port blocking practice Clue Store (Oct 24)