Naturally, this means Thunderbird junks any message with this in it, if not my server-side scanning software.All New Yahoo! Mail – Tired of Vi@gr@! come-ons? Let our SpamGuard protect you.
It's not the worst thing in the world - I've whitelisted all Yahoo domains (despite the fact that much spam is spoofed to come from Yahoo) - but is it me, or is this absolutely totally insane on Yahoo's part?