nanog mailing list archives
Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request]
From: Viruthagiri Thirumavalavan <giri () dombox org>
Date: Sat, 12 Jan 2019 07:44:40 +0530
While we're at it, let's deprecate IPv4 now that IPv6 is fully deployed
Come on Mr. Herrin. Blocking a port is much easier than deprecating a heavily used protocol. Google stats show ~75% use IPv4. On Sat, Jan 12, 2019 at 7:30 AM William Herrin <bill () herrin us> wrote:
On Fri, Jan 11, 2019 at 5:52 PM Viruthagiri Thirumavalavan <giri () dombox org> wrote:In addition, it bypasses all the security folks have built around the idea of blocking port 25 traffic from sources which should not be operating as mail servers. Let's not make the network less secure in the name of making it more so.I already addressed this issue in the "security considerations" section. "Port 26 will be a secure alternative for Port 25. So Internet ServiceProviders are adviced to take precautions to prevent email spam abuse. They are advised to block port 26, if necessary." While we're at it, let's deprecate IPv4 now that IPv6 is fully deployed. -Bill -- William Herrin ................ herrin () dirtside com bill () herrin us Dirtside Systems ......... Web: <http://www.dirtside.com/>
-- Best Regards, Viruthagiri Thirumavalavan Dombox, Inc.
Current thread:
- SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Viruthagiri Thirumavalavan (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Michael Thomas (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Doug Royer (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Viruthagiri Thirumavalavan (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Suresh Ramasubramanian (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Viruthagiri Thirumavalavan (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] William Herrin (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Viruthagiri Thirumavalavan (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] William Herrin (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Viruthagiri Thirumavalavan (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] William Herrin (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Brandon Martin (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Viruthagiri Thirumavalavan (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Suresh Ramasubramanian (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Viruthagiri Thirumavalavan (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] valdis . kletnieks (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] valdis . kletnieks (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Viruthagiri Thirumavalavan (Jan 11)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Töma Gavrichenkov (Jan 12)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Viruthagiri Thirumavalavan (Jan 12)
- Re: SMTP Over TLS on Port 26 - Implicit TLS Proposal [Feedback Request] Viruthagiri Thirumavalavan (Jan 11)