[Esa-l] Weird E-Mail

John D. Hardin jhardin at impsec.org
Tue May 1 06:31:24 PDT 2001

On Tue, 1 May 2001, Jason Jordan wrote:

> Is it possible to block when the claimed host name doesn't match
> the resolved one?  Is it dumb?

It may be possible in sendmail. It'd be outside the scope of the

You may want to take a look at things like the Dailup Users List and
the other resources at http://www.orbs.org/

 John Hardin KA7OHZ   ICQ#15735746   http://www.wolfenet.com/~jhardin/
 jhardin at wolfenet.com      pgpk -a finger://gonzo.wolfenet.com/jhardin
  768: 0x41EA94F5 - A3 0C 5B C2 EF 0D 2C E5  E9 BF C8 33 A7 A9 CE 76 
 1024: 0xB8732E79 - 2D8C 34F4 6411 F507 136C  AF76 D822 E6E6 B873 2E79
  An entitlement beneficiary is a person or special interest group
  who didn't earn your money, but demands the right to take your
  money because they *want* it.
                                  -- John McKay, _The Welfare State:
                                     No Mercy for the Middle Class_
   1281 days until the Presidential Election

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