Spam Hound has full support for mailing lists.

Mailing lists are a way for many people to communicate with one another via email, much like a conference call.

Spam Hound automatically detects mail from mailing lists.
This enables you to use Spam Hound with confidant that any mail coming from a mailing list that you have subscribed to will never be mistaken for spam.
On the other hand if you find yourself subscribed to a mailing list and cannot get off of it Spam Hound can block 100% of mail from that mailing list.

In addition Spam Hound will automatically whitelist all people on the mailing list so that if they contact you off list their email will never be mistaken for spam.