Boobearsh gave me an idea.
This is not gaia forum worthy because I just copied boob. But I made a macro to clear an inbox.
Code:
http://run.imacros.net/?code=VkVSU0lPTiBCVUlMRD02MjUxMjA0IFJFQ09SREVSPUZYDQpUQUIgVD0xDQpVUkwgR09UTz1odHRwOi8vd3d3LmdhaWFvbmxpbmUuY29tL3Byb2ZpbGUvcHJpdm1zZy5waHA%2FZm9sZGVyPWluYm94DQpUQUcgUE9TPTEgVFlQRT1JTlBVVDpDSEVDS0JPWCBGT1JNPU5BTUU6cHJpdm1zZ19saXN0IEFUVFI9TkFNRTptYXJrW10gQ09OVEVOVD1ZRVMNClRBRyBQT1M9MSBUWVBFPURJViBBVFRSPUlEOnBtX2NvbnRlbnQNClRBRyBQT1M9MSBUWVBFPUJVVFRPTiBBVFRSPUlEOmJ0bl9kZWxldGU%3D