Sendmail/wrappers question

2003-08-04 Thread Stephen Hovey 

whats the surest way to prevent mail hosts with no reverse dns from being
able to connect/send email?

The hosts.allow example seem more accurately ident'ing and refusing than
check there is a reverse dns.

Any insight is appreciated! :)

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Re: Sendmail/wrappers question

2003-08-04 Thread Matthew Seaman 
On Mon, Aug 04, 2003 at 05:09:56PM -0400, Stephen Hovey wrote:
 
 whats the surest way to prevent mail hosts with no reverse dns from being
 able to connect/send email?
 
 The hosts.allow example seem more accurately ident'ing and refusing than
 check there is a reverse dns.
 
 Any insight is appreciated! :)

That's been covered on this list fairly recently:

http://freebsd.rambler.ru/bsdmail/freebsd-questions_2003/msg23474.html 

Cheers,

Matthew

-- 
Dr Matthew J Seaman MA, D.Phil.   26 The Paddocks
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PGP: http://www.infracaninophile.co.uk/pgpkey Marlow
Tel: +44 1628 476614  Bucks., SL7 1TH UK


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Re: Sendmail/wrappers question

2003-08-04 Thread Jonathan Chen 
On Mon, Aug 04, 2003 at 10:15:22PM +0100, Matthew Seaman wrote:
 On Mon, Aug 04, 2003 at 05:09:56PM -0400, Stephen Hovey wrote:
  
  whats the surest way to prevent mail hosts with no reverse dns from being
  able to connect/send email?
  
  The hosts.allow example seem more accurately ident'ing and refusing than
  check there is a reverse dns.
  
  Any insight is appreciated! :)
 
 That's been covered on this list fairly recently:
 
 http://freebsd.rambler.ru/bsdmail/freebsd-questions_2003/msg23474.html 

And be aware that there are quite a few legitimate small servers out
there that _don't_ have a reverse DNS set up.. However, having said
that, the rules block a *LOT* of spam from China and Korea.

Cheers.
-- 
Jonathan Chen [EMAIL PROTECTED]
--
I don't want to achive immortality through my works..
 I want to achieve it through not dying - Woody Allen
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