whitelist_from_rcvd with numeric IP?

["Rosenbaum, Larry M." <ro...@ornl.gov>]

The documentation for whitelist_from_rcvd shows examples like this:

whitelist_from_rcvd joe@example.com  example.com

What if the sending server has no rDNS?  Is there a way to use this feature with a numeric IP instead of a rDNS domain?  If so, what is the syntax?

Thanks, Larry

Re: whitelist_from_rcvd with numeric IP?

[Daniel J McDonald <da...@austinenergy.com>]

On Tue, 2007-10-30 at 11:57 -0400, Rosenbaum, Larry M. wrote:
> The documentation for whitelist_from_rcvd shows examples like this:
> 
> whitelist_from_rcvd joe@example.com  example.com
> 
> What if the sending server has no rDNS?

They you can't use whitelist_from_rcvd, and the sender needs to fix
their rDNS!

>   Is there a way to use this feature with a numeric IP instead of a rDNS domain? 
No.

>  If so, what is the syntax?

If they are adamant that they can't fix rDNS, I usually ask for an SPF
record, and then do a whitelist_from_spf.  When they claim that they can
fix neither rDNS or set their SPF record, I might use amavisd-new's
soft-whitelisting to trim a couple of points, or I tell them to pound
sand.  Usually I can convince people to fix one or the other.

 

-- 
Daniel J McDonald, CCIE #2495, CISSP #78281, CNX
Austin Energy
http://www.austinenergy.com