The MailSure blog
Email verification, deliverability and clean lists
Practical guides for marketers and developers who want their email to reach real people.
The Black Friday email checklist: get your list ready
Peak-season sending magnifies list problems. A short checklist to run in the weeks before Black Friday so your best campaign days reach the inbox.
Email verification for e-commerce stores
Order confirmations, abandoned-cart emails and receipts all depend on a working address. Here is where verification pays off in a shop.
Sunset policies: when to stop emailing inactive subscribers
Subscribers who never open drag down your engagement and reputation. A sunset policy retires them kindly and protects your deliverability.
Double opt-in vs single opt-in: which should you use?
Double opt-in confirms every address is real and consented. Single opt-in is smoother. Here is the trade-off and a middle path.
Role-based email addresses (info@, sales@): should you email them?
Role addresses reach a team, not a person. They are legitimate, but they behave differently from personal addresses. Here is how to handle them.