How to disable non-trusted links

[vglass]

I am running 3.7.1 and am looking for a mod that will allow me to define trusted domains that users can create links to. For example, users can link to domains a.com, b.com and c.com but no other domains. Does anyone have any recommendations?

[Dismounted]

I believe Marco (van Herwaarden) created a modification that can do this.

[Marco van Herwaarden]

See my profile.