nanog mailing list archives
Re: Transparent hijacking of SMTP submission...
From: William Herrin <bill () herrin us>
Date: Sat, 29 Nov 2014 10:44:35 -0500
On Thu, Nov 27, 2014 at 9:51 PM, Jay Ashworth <jra () baylink com> wrote:
----- Original Message -----From: "William Herrin" <bill () herrin us> I'm not sure I follow your complaint here. Are you saying that Comcast or a Comcast customer in Washington state stripped the STARTTLS verb from the IPv4 port 587 SMTP submission connection between you and a third party?Yup; that's what he's saying. This was in the technical press earlier this week -- or the end of last.
Hi Jay, Seems to me that if an ISP is altering the contents of its users' packets (not just blocking them, altering them) then that ISP should be named and shamed, if not worse. Unless the customer contracted for special account type where that was a desired and intended feature, such behavior is inexcusable. If it's a customer of that ISP, on the other hand, then it's just the normal idiocy and paranoia, no different than the retarded behavior by amateur sysadmins that block all ICMP because they don't want to be pinged (see PMTUD and its effects on TCP). Anyway, I was curious which accusation was being leveled. Regards, Bill Herrin -- William Herrin ................ herrin () dirtside com bill () herrin us Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/> May I solve your unusual networking challenges?
Current thread:
- Transparent hijacking of SMTP submission... joel jaeggli (Nov 27)
- Re: Transparent hijacking of SMTP submission... Mark Andrews (Nov 27)
- Re: Transparent hijacking of SMTP submission... Suresh Ramasubramanian (Nov 27)
- Re: Transparent hijacking of SMTP submission... Mark Andrews (Nov 27)
- Re: Transparent hijacking of SMTP submission... Suresh Ramasubramanian (Nov 27)
- Re: Transparent hijacking of SMTP submission... Suresh Ramasubramanian (Nov 27)
- Re: Transparent hijacking of SMTP submission... Mark Andrews (Nov 27)
- Re: Transparent hijacking of SMTP submission... William Herrin (Nov 27)
- Re: Transparent hijacking of SMTP submission... Suresh Ramasubramanian (Nov 27)
- Re: Transparent hijacking of SMTP submission... Jay Ashworth (Nov 27)
- Re: Transparent hijacking of SMTP submission... William Herrin (Nov 29)
- Re: Transparent hijacking of SMTP submission... Jay Ashworth (Nov 27)
- Re: Transparent hijacking of SMTP submission... Randy Bush (Nov 29)
- Re: Transparent hijacking of SMTP submission... Sander Steffann (Nov 29)
- Re: Transparent hijacking of SMTP submission... Jean-Francois Mezei (Nov 29)
- Re: Transparent hijacking of SMTP submission... Christopher Morrow (Nov 29)
- Re: Transparent hijacking of SMTP submission... John Levine (Nov 29)
- Re: Transparent hijacking of SMTP submission... Christopher Morrow (Nov 29)
- Re: Transparent hijacking of SMTP submission... joel jaeggli (Nov 29)
- Re: Transparent hijacking of SMTP submission... Christopher Morrow (Nov 29)
- Re: Transparent hijacking of SMTP submission... William Herrin (Nov 30)
- Re: Transparent hijacking of SMTP submission... Sander Steffann (Nov 29)