[Gross] Patch to Greylist Bad Helo

[Eino Tuominen]

Rolf E. Sonneveld wrote:
 >
> Is this configurable?
> What is the logic? I assume something like:

It's a separate check that needs to be enabled. (check = helo) Currently 
  (not yet committed to the svn) the weights are as follows:

weight = 0

if (helo string is invalid) {
	weight += 1
} else if (helo string does not resolve) {
	weight += 1
} else if (helo string resolves but does not match client ip) {
	weight += 1
}
if (client ip has no PTR record) {
	weight += 1
} else if (helo string and the PTR for client ip do not match) {
	weight += 1
}

I'll add configurable weights before releasing it.

-- 
   Eino Tuominen