The Safe Link technology was recently launched by Microsoft through Office 365. The goal of this technology is to rewrite all URL's in email to a URL classification service, so at the time of user-clicks it's possible to reclassify a URL. This method is preferred as spammers more often replace the phishing URL's site content after a message is being scanned, hence there is a need of reclassification later. Safe link is Microsoft's "best-effort" to do so.
Have you checked out our open-source end-user interface on GitHub? It can be used either as it is, modified to fit your needs, or only as an inspiration for your own code. Since last time we posted about it, we have updated it with a bunch of goodies, have a look and feel free to give us some feedback if you decide to try it.