[rt-users] blocking correspondence labeled "Precedence: bulk"

[Tim Pierce]

Hi, all -

We are addressing for the first time the problem of how to filter mail 
from outside users into RT.

Our first problem is not spam, but autoreplies from vendors.  We have 
given an RT queue address as the contact address for some of our 
partners and clients to report problems.  When they send mail, it opens 
a ticket and RT sends an autoreply.  That autoreply, in turn, often 
generates a new autoreply from the vendor, which opens a new ticket in RT.

After looking at some of the inbound mail it looks as if dropping 
inbound mail with a header of "Precedence: bulk" would do a good first 
pass at eliminating the autoreplies.  I'm writing to ask: has anyone 
tried this and found it to be a *bad* idea?

thanks,
--twp