I've startet such an addon (zz_Altmail). But I dont have the time to work on it properly.
You would have to download it from my repo at
https://wow.grml.de/
And configuration is done in core.lua
There is sendouttable which is a per realm and item category/subcategory list. ('order' and 'skip' are not yet implemented
)
Lua Code:
local sendouttable = {
['Durotan'] = {
['Trade Goods'] = {
['Enchanting'] = {
['Rilgana-Tirion'] = {
['order'] = 1,
['skip'] = {},
},
},
['Metal & Stone'] = {
['Rilgany-Tirion'] = {
['order'] = 1,
['skip'] = {},
},
},
['Herb'] = {
['Rilgana-Tirion'] = {
['order'] = 1,
['skip'] = {},
},
}
}
}
}