nanog mailing list archives
Re: [BULK] Re: SORBS contact
From: William Herrin <bill () herrin us>
Date: Sat, 30 Jul 2011 15:18:17 -0400
On Sat, Jul 30, 2011 at 10:12 AM, <Valdis.Kletnieks () vt edu> wrote:
Hint: If somebody forges a subscription request from 'nosuchuser () herrin us', do you want the resulting "Somebody has requested this email address to be added to the foobar-l list, please click or reply within 48 hours to confirm" mail to show up with a <> so you can skip generating the bounce, or do you want it to have a non-null return path so you're forced to generate a bounce that will be ignored at the other end anyhow? Does your answer change if some skript kiddie forges 10,000 requests?
1. nosuchuser () herrin us rejects during the smtp session, so it makes no difference to my server resource consumption either way. 2. I assume the subscription request came from a web page because if it was from an email request you received then you ignored my SPF records when generating the confirmation request. That was OK in 2001 but in 2011 you ought not be doing that. 3. If you happen to hit my real email address and it isn't caught by my spam filter, then all 10,000 show up in my mailbox whether you used a null return path or not. This will annoy me and when I examine the message and notice that you engaged in fire and forget behavior so that you wouldn't be bothered by the fact that you flooded my mailbox, all bets are off. So, if you want to do me a favor (as opposed to doing yourself a favor), process the messages I bounce at you and like a responsible person, try to do something intelligent with the results. Regards, Bill Herrin -- William D. Herrin ................ herrin () dirtside com bill () herrin us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
Current thread:
- Re: SORBS contact, (continued)
- Re: SORBS contact William Pitcock (Jul 28)
- Re: SORBS contact Dorn Hetzel (Jul 28)
- Re: SORBS contact PC (Jul 28)
- Re: SORBS contact Barry Shein (Jul 28)
- Re: [BULK] Re: SORBS contact Brian R. Watters (Jul 28)
- Re: [BULK] Re: SORBS contact Valdis . Kletnieks (Jul 28)
- Re: [BULK] Re: SORBS contact William Herrin (Jul 29)
- Re: [BULK] Re: SORBS contact Valdis . Kletnieks (Jul 29)
- Re: [BULK] Re: SORBS contact William Herrin (Jul 30)
- Re: [BULK] Re: SORBS contact Valdis . Kletnieks (Jul 30)
- Re: [BULK] Re: SORBS contact William Herrin (Jul 30)
- Re: [BULK] Re: SORBS contact Valdis . Kletnieks (Jul 31)
- Re: [BULK] Re: SORBS contact William Herrin (Jul 31)
- Re: [BULK] Re: SORBS contact Valdis . Kletnieks (Jul 31)
- Re: [BULK] Re: SORBS contact Michelle Sullivan (Jul 29)
- Re: [BULK] Re: SORBS contact Valdis . Kletnieks (Jul 30)
- Re: [BULK] Re: SORBS contact Landon Stewart (Jul 29)
- Re: [BULK] Re: SORBS contact Michelle Sullivan (Jul 29)
- Re: [BULK] Re: SORBS contact Dan Collins (Jul 29)
- Re: [BULK] Re: SORBS contact Rich Kulawiec (Jul 30)
- Re: [BULK] Re: SORBS contact Michelle Sullivan (Jul 30)