On 10/13/2011 02:37 AM, Ralf Hildebrandt wrote:
* Noel Jones<njo...@megan.vbhcs.org>:

You might be able to do something with check_recipient_mx_access.
Mostly, these domains have no MX, but only an A record. But yes, I
havne'T yet checked if they all resolve to but a few IPs

Since all the non existing domains are now being "typo-squatted" with A records and MX records too
What I saw that most of these domains use common MX or NS records

I use  check_recipient_mx_access   and reject these mails at SMTPD
I typically reject all mails where MX points to mx.fakemx.net , or mxs1.tradenames.com .. among others


Ofcourse getting users to use addressbook is the correct thing , but when you have far too many users from different cities this may not be easy








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