Single opt-in is faster but can invite fake signups and typos. Learn how to mitigate risks if you use it.
Single opt-in adds subscribers immediately after form submission, which reduces friction. The downside is higher risk of bots, spam traps, and typos entering your list.
If you use single opt-in, mitigate risk with bot protection, verification, and engagement-based filtering. Monitoring bounces and complaints becomes even more important.