You can also add a few steps to your signup process to prevent future invalid emails from infiltrating your list. Let's go over your options to help you clean up your subscriber list and keep it healthy. Identify and delete invalid emails the easiest way to identify and remove invalid emails is by using email validation tools. You can upload your list and the validation technology will detect invalid email addresses for you to remove. Doing so can reduce your bounce rate by and help your newsletters reach the inbox.
Validate your list when migrating from crypto users number data another email service switching from one platform to another is a great opportunity to validate your list. Run your subscribers through a validation tool before sending your first newsletter. Validation tools can also categorize your email list to identify emails that might be spam traps (they can't identify everyone), emails that contain typos, and emails with full mailboxes. With this information, you can clean and organize your subscriber list to avoid bounces.
Avoid sending invalid emails in the future for starters, the worst thing you can do is buy a list. You're almost guaranteed to add spam traps and ruin your healthy subscriber list. It's not worth it! Aside from not buying lists, the best way to start avoiding invalid email addresses is to add double opt-in and/or recaptcha features to your signup process. With double opt-in, your new subscribers receive a confirmation email after signing up. The new address won't be added to your list until a real person confirms the subscription.