You have no doubt been receiving "opt-in" emails for a month or so, and if you have a list of your own you should be sending out your own opt in email. Now would be good!
Here is a great article about CASL Compliance from Inbox Marketer.
I saw a couple of interesting twists – my insurance broker sent me an opt in email with a contest. If you opt in you have a chance to win a $100 gas card.
And the Toronto Golf Show will send me a $5 off voucher if I opt in to their email list I am on.
As a direct marketing guy from way back – the offer is King!
But, is this the right thing to do? Is it ethical? Legal?