I've had it for some time – all my mails getting into spam folders of users with yahoo mail… that's weird, as I implemented the SPF standard already 1,5 years ago to verify my domain cemper.com to be sent from my mailserver.

To recap – SPF is a standard to verify that my domain and my mailserver belong together, so no spammer can forge a cemper.com mail

MSN uses this for it's junk mail folder

and I thought Yahoo does too

but I found out that they have implemented an own concept called DomainKeys to verify domains – and while the concept looks pretty extensive, it is not implementable.

People on the support forum of Cpanel ( a widely used web hosting management toolkit ) bitch around for getting support into mailserver Exim for that feature FOR MONTHS.

That means basically – with Yahoo implementing this feature they put all people out of the normal email-loop that rely on standard mail software (that does not implement that feature yet)

I am pretty sure that the top-notch spammers who employ crowds of programmers, statisticans, writers etc to create their crap already got a 110% valid domainkeys implementation for their junk…

This start to get an annoyance… legit mail becomes bulk, while spam mail get thru…

Maybe we should start to switch reading the spam folder mails first to solve this issue???