Does using “Re:” improve open rates safely?
No. Using fake "Re:" to imply prior conversation is deceptive. It may boost initial opens but destroys trust when recipients realize the manipulation. It also violates CAN-SPAM's prohibition on deceptive headers.
Short term tactic gains do not outweigh long term trust damage and compliance risk. Recipients who feel deceived become complainers.
Write honest subject lines. Build real relationships rather than faking them. Deception is not a sustainable outreach strategy.
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