Re: [exim] Gmail's new 'suspicious sender' flag

On 7/11/11, Ted Cooper <eximX0902w@???> wrote:

> That's deep header inspection then - you shouldn't normally reject mail
> because the 2nd or 3rd level of received headers is listed in a DNS
> block list. That is a common mis-configuration of Barracuda appliances.
> It means that innocent users of an ISP that has been good and listed all
> their non-mail blocks in the Spamhaus PBL (for example) are falsely
> rejected.
>
> Many a bad word has been uttered around the world upon discovering email
> being rejected by one of those systems.

Oh yes, I personally contributed to those words when I discovered
that. And more when I discovered they also appear to be operating a
service/site where you could pay to get "whitelisted" for a year per
IP with auto-renewal and apparently difficulties at getting
subscription cancelled. Seems like an incentive for them to be as
indiscriminate with blacklisting as possible, as long as they have at
least one piece of "spam" to back it up.