Double Opt-In vs. Single Opt-In
Single opt-in (SOI) and double opt-in (DOI) are the two methods businesses use to add new subscribers to an email list. The difference comes down to one extra step — and that step has real consequences for list quality, deliverability, and engagement. Single opt-in adds subscribers to your audience immediately after they submit a form, … Continue reading "Double Opt-In vs. Single ...