nanog mailing list archives
Re: OT? /dev/null 5.1.1 email
From: Piotr KUCHARSKI <chopin () sgh waw pl>
Date: Sat, 9 Jul 2005 02:30:32 +0200
On Wed, Jul 06, 2005 at 12:08:23AM -0400, Valdis.Kletnieks () vt edu wrote:
What about setting your highest order MX and lowest order MX to point to the same set of mail servers, and hide your backup servers in the middle.Devious. ;)
Another: highest MX pointing to server which only responds after 5-10 secs with 451 instead of 220-hello -- MTAs will try different MX, spammers will try to send or disconnect, but mails will be rejected anyway. p. -- Beware of he who would deny you access to information, for in his heart he dreams himself your master. -- Commissioner Pravin Lal
Current thread:
- Re: OT? /dev/null 5.1.1 email, (continued)
- Re: OT? /dev/null 5.1.1 email Steven M. Bellovin (Jul 05)
- Re: OT? /dev/null 5.1.1 email David Andersen (Jul 05)
- Re: OT? /dev/null 5.1.1 email Joe Maimon (Jul 05)
- Re: OT? /dev/null 5.1.1 email Valdis . Kletnieks (Jul 05)
- Re: OT? /dev/null 5.1.1 email Jim Popovitch (Jul 05)
- Re: OT? /dev/null 5.1.1 email Brad Knowles (Jul 05)
- Re: OT? /dev/null 5.1.1 email Patrick Muldoon (Jul 05)
- Re: OT? /dev/null 5.1.1 email Simon Lyall (Jul 05)
- Re: OT? /dev/null 5.1.1 email Eric A. Hall (Jul 05)
- Re: OT? /dev/null 5.1.1 email Valdis . Kletnieks (Jul 05)
- Re: OT? /dev/null 5.1.1 email Piotr KUCHARSKI (Jul 08)
- Re: OT? /dev/null 5.1.1 email Brad Knowles (Jul 06)