> The problem is that waaaay too many legit senders still don't know how to configure their email servers, so you end up with a boatload of false positives. Ir

> The problem is that waaaay too many legit senders still don't know how to configure their email servers, so you end up with a boatload of false positives. Ironically Gmail has started demanding DKIM or SPF, possibly slowly saving email from this mess of unidentifiable mail.