Should I use a double opt-in to improve deliverability?

[Daniel]

Using a double opt-in can help improve deliverability because it confirms that the subscriber really wants to receive your emails. After someone signs up, they get another email asking them to confirm their subscription. When they click that link, it shows they are truly interested. This means your list will be filled with real people who are more likely to open your emails. It also helps reduce fake or wrong email addresses from entering your list. A cleaner list leads to better open rates, lower bounce rates, and fewer spam complaints. All of these can boost your sender reputation. Some might say it slows down the sign-up process, but the quality of your list is more important than the number of people on it. What would you consider first when deciding whether or not to use double opt-in for your email list?