How often should you clean your email list?
Clean your email list before every large send and at least every 3 to 6 months. B2B lists decay faster because people change jobs, so clean them more often; also verify any list you import or buy before the first send.
Email lists go bad on their own. People change jobs, close accounts and abandon mailboxes. A list you do not look after slowly turns into bounces and spam complaints.
A simple schedule
- Before every large campaign: verify the whole list.
- Every 3 to 6 months: re-check lists you keep, even if you have not sent to them.
- Every new import: verify before the first send, especially lists from events, partners or purchases.
- All the time: check new sign-ups as they arrive, so typos never get in.
B2B lists decay faster
Business addresses are tied to jobs. When someone moves on, their address is closed or left unread. That makes B2B lists decay faster than personal ones, so clean them more often.
What cleaning means
- Remove addresses that do not exist (Undeliverable).
- Remove people who left their company.
- Separate risky addresses (catch-all, full mailboxes) into their own careful batch.
- Remove disposable and toxic addresses, such as spam traps.
- Remove duplicates.
With the bulk email verifier you can do all of this in one upload of up to 50,000 addresses, and get a list health score.
Clean lists inside your email tool too. From your Domailfix account you can check lists in Mailchimp, Brevo, Instantly and other tools without exporting them.
FAQ
What happens if I never clean my email list?
Bounces and spam complaints grow, your sender reputation drops, and more of your emails go to spam.
Does cleaning a list remove good contacts?
No. Only addresses that do not exist, are risky or should not be emailed are taken out. You decide what to remove.
How much does it cost to clean a list?
With Domailfix, 1 credit per address, duplicates checked once, and Unknown results free.