The MailSure blog
Email verification, deliverability and clean lists
Practical guides for marketers and developers who want their email to reach real people.
Guides2 min read
CSV preparation tips before you verify a big list
A few minutes in a spreadsheet makes bulk verification smoother and cheaper. Common file problems and how to fix them.
Guides2 min read
Understanding your results: valid, risky, invalid and unknown
What each Mailsure status means, what the score and reasons tell you, and what to do with every kind of result.
Guides2 min read
How often should you clean your email list?
Lists decay constantly. Here is how to decide on a cleaning schedule based on how you collect and send, instead of guessing.
Guides2 min read
Real-time vs bulk email verification: which do you need?
Real-time checks stop bad addresses at the door. Bulk checks clean the list you already have. Most businesses need both, in different proportions.
Guides2 min read
How to clean your email list, step by step
A practical, ordered process for cleaning an email list: back up, deduplicate, verify, segment and keep it clean afterwards.