Dear :

It is our great pleasure to announce that we at [company/store] have prepared our longest Christmas Sale, so you may enjoy your savings both before and after the holidays. This year's Christmas Sale will include more than items! Please see the enclosed catalog for details.

This is [company/store]'s way of wishing you the best Christmas ever. We look forward to serving you during this season of good cheer.

[name]

[title]