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Hey guys through a fortunate set of circumstances I ended up with a list of 40k individuals who have not been emailed from the source in 2 years.

I am looking for some thoughts on how best to approach reengaging them and ensuring that I capitalize upon it in the most effective way possible.

best you can do is, share with bbhf community.

What niche? How you collected emails? Are they in your autoresponder? Have you ever send any emails to them?