I recomend not freezing Salmon after smoking it. I keep my vacuum packed smoked Salmon in the refidgerator (not the freezer) for up to a year with excellent results. I find that when you freeze smoked salmon it can radically change the taste and texture of the fish and also damage the oils.

Keep the fridge as cool as you can and your smoked fish will stay fresh for a very long time without freezing.
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Whoever undertakes to set himself up as a judge of
Truth and Knowledge is shipwrecked by the laughter
of the gods.

-- Albert Einstein