nanog mailing list archives
Re: Outgoing SMTP Servers
From: William Herrin <bill () herrin us>
Date: Wed, 26 Oct 2011 00:33:37 -0400
On Tue, Oct 25, 2011 at 8:15 PM, Owen DeLong <owen () delong com> wrote:
On Oct 25, 2011, at 3:16 PM, William Herrin wrote:If you're doing the "right" thing, sending email via encrypted, authenticated mechanisms, then you're doing it TCP ports 587 or 443. Where Mike's mechanism obstructs you not at all.Depends. Some hotel admins aren't so bright. That's the problem. Not everyone hears block outbound SMTP on port 25, they hear block outbound SMTP and stop listening. Boom, 25, 465, 587 all get turned off.
Sure. But that's not Mike's mechanism. It's ignorant hotel guy's mechanism. Don't penalize Mike because some other fool does something similar but wrong.
If you're still doing the wrong thing, trying to talk to remote SMTP servers on TCP port 25, why should his mechanisms not punish you?It's not wrong to talk to them on port 25. It's wrong to allow unauthenticated remote users to send on your own port 25 for relay purposes.
Sure it is. Same way it's wrong to have an open relay or an unsecured proxy. It isn't 1995 any more. Regards, Bill Herrin -- William D. Herrin ................ herrin () dirtside comĀ bill () herrin us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
Current thread:
- Re: Outgoing SMTP Servers, (continued)
- Re: Outgoing SMTP Servers Owen DeLong (Oct 25)
- Re: Outgoing SMTP Servers Jeroen Massar (Oct 25)
- Re: Outgoing SMTP Servers Owen DeLong (Oct 25)
- Re: Outgoing SMTP Servers Ricky Beam (Oct 25)
- Re: Outgoing SMTP Servers Alex Harrowell (Oct 25)
- Re: Outgoing SMTP Servers Robert Bonomi (Oct 25)
- Re: Outgoing SMTP Servers Mike Jones (Oct 25)
- Re: Outgoing SMTP Servers Owen DeLong (Oct 25)
- Re: Outgoing SMTP Servers William Herrin (Oct 25)
- Re: Outgoing SMTP Servers Owen DeLong (Oct 25)
- Re: Outgoing SMTP Servers William Herrin (Oct 25)
- Re: Outgoing SMTP Servers Owen DeLong (Oct 25)
- Re: Outgoing SMTP Servers Mike Jones (Oct 25)
- Re: Outgoing SMTP Servers Owen DeLong (Oct 26)
- Re: Outgoing SMTP Servers Henry Yen (Oct 26)
- Re: Outgoing SMTP Servers Graham Beneke (Oct 25)
- Re: Outgoing SMTP Servers Ricky Beam (Oct 26)
- Re: Outgoing SMTP Servers Mark Andrews (Oct 26)
- Re: Outgoing SMTP Servers Leigh Porter (Oct 26)
- Re: Outgoing SMTP Servers Mark Foster (Oct 26)
- Re: Outgoing SMTP Servers Mark Andrews (Oct 26)