[Mimedefang] Dealing with massive spam burst

[Matthew.van.Eerde at hbinc.com]

Les Mikesell wrote:
>> You should be doing this anyway.  All mail servers have a growing
>> onus on them to SMTP reject incoming emails at the organization
>> boundary wherever possible.
> 
> Has anyone come up with a 'pure sendmail' way to accomplish this?  That
> is, given a firewalled machine running sendmail, to periodically rebuild
> an access list containing all the addresses it will accept, and on the
> exposed machine a way to merge the lists from an assortment of
> destination machines? 

Hmmm... the latest versions of sendmail have a FEATURE(ldap_routing...)
http://www.sendmail.org/m4/ldap_routing.html

It appears this may work more or less directly with Active Directories, give or take a few schema extensions and open ports.

I haven't gotten this to work myself, but this would be a good place to start.

Perhaps there is a sendmail-specific list somewhere that has already discussed this issue more in-depth?

If anyone finds a definitive answer I'd be interested.

Matthew.van.Eerde at hbinc.com                      805.964.4554 x902
Hispanic Business Inc./HireDiversity.com         Software Engineer
perl -e"map{y/a-z/l-za-k/;print}shift" "Jjhi pcdiwtg Ptga wprztg,"