nanog mailing list archives
Re: SMTP store and forward requires DSN for integrity
From: Matt Sergeant <msergeant () messagelabs com>
Date: Mon, 12 Dec 2005 16:21:32 -0500
On 12 Dec 2005, at 15:50, John Levine wrote:
And BATV will never be widely deployed because it breaks every single system out there that keys off the return path. And there are a lot of these systems.I keep hearing that, but other than a few ezmlm lists and the occasional tired fax gateway, I never run into them. Where are they?
I can't enumerate them all for you - I don't know them all. That's the point though - you can't know all the systems you may be breaking by changing the way your MAIL FROM works.
Here's a few that I've told you about before: Whitelist/Blacklist entries Quarantine systems Anything based on .qmail files Some auto-forwarders Auto-respondersNow you can potentially whitelist around these issues (to some extent), but while that works for geek mail systems it doesn't scale up very well. I know you (personally) whitelist around some problem systems in your implementation but can you expect Grandma to do that?
Matt. ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System.For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
Current thread:
- Re: SMTP store and forward requires DSN for integrity Robert Bonomi (Dec 10)
- Re: SMTP store and forward requires DSN for integrity Douglas Otis (Dec 10)
- <Possible follow-ups>
- Re: SMTP store and forward requires DSN for integrity Robert Bonomi (Dec 10)
- Re: SMTP store and forward requires DSN for integrity Matt Sergeant (Dec 12)