VeinDigging

VeinDigging is a mod which allows players to VeinDig -- just like VeinMiner! This mod differs from other VeinMiner mods by being optional on the client. This means anyone on your server can VeinDig by sneaking, but people with the mod installed can use the VeinDig keybind! Additionally, you will automatically stop VeinDigging right before your tool breaks.

For server owners:

There are whitelist and blacklist tags available:

• veindigging:bind_blacklist
• veindigging:bind_whitelist
• veindigging:shift_blacklist
• veindigging:shift_whitelist
• veindigging:global_blacklist
• veindigging:global_whitelist

The only whitelist on by default is the shift whitelist, which contains logs, leaves, ores and glowstone. This means people sneaking won't accidentally VeinDig anything they don't mean to. I'd recommend against turning the shifting whitelist off.