The MailSure blog
Email verification, deliverability and clean lists
Practical guides for marketers and developers who want their email to reach real people.

Security2 min read
How to protect your free trial from abuse
Free trials attract people who sign up over and over. Practical ways to keep the offer generous for real users and unattractive to abusers.

Security2 min read
How to stop fake signups on your SaaS
Fake accounts waste your resources and distort your metrics. A layered approach works better than any single trick.

Security2 min read
Disposable email addresses: what they are and how to block them
Throwaway inboxes let people sign up without giving you a real contact. Here is why they matter and how to deal with them sensibly.