The campaign targets existing consumers on the Glenfiddich database about Toasted Oak Reserve, which is a blend of caramel toffee or spicy vanilla whisky.
The selected whisky drinkers will receive a single malt scotch whisky which has aged for 12 years in charred barrels, and a letter from malt master David Stewart asking for feedback on the product.
Respondents will be automatically entered into a prize draw to win a Glenfiddich range of whiskies.
Peter Worster, planning director at Presky Maves, said: "We wanted our CRM base to be the first to know about this new release from Glenfiddich, and to remind them of the range of whiskies [it] has.
"By asking for their feedback we can gain clearer insights into how this core audience feel about Glenfiddich Toasted Oak Reserve."
Glenfiddich announced this week that design agency Decoder had produced its Christmas gift pack set.
Both the festive gift set and the mailing campaign are part of Glenfiddich's 'One Spirit, Different Whiskies' campaign.
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