block emails with no valid reverse DNS

[Anders Andersson, IT]

> -----Original Message-----
> From: MailScanner mailing list 
> [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf Of Doc Schneider
> Sent: Tuesday, May 24, 2005 11:44 PM
> To: MAILSCANNER at JISCMAIL.AC.UK
> Subject: Re: block emails with no valid reverse DNS
> 
> Vasantha Narayanan wrote:
> > Hi,
> >
> > I want to block emails from servers which do not have a 
> valid reverse 
> > DNS lookup.  I would like to be able to do this without 
> using a DNSBL server,
> > but merely using dns.   Can you tell me:
> > 1. How this can be done using Sendmail?
> > 2.  How can this be done using MailScanner?
> >
> > Thanks.
> >
> > Vasantha
> 
> You can use this:


States that onlu work up to 8.12, what about 8.13.x?

/Anders

> 
> HTH,
> 
> -Doc
> 

------------------------ MailScanner list ------------------------
To unsubscribe, email jiscmail at jiscmail.ac.uk with the words:
'leave mailscanner' in the body of the email.
Before posting, read the Wiki (http://wiki.mailscanner.info/) and
the archives (http://www.jiscmail.ac.uk/lists/mailscanner.html).

Support MailScanner development - buy the book off the website!