Guides, checklists and news on email verification, list hygiene and deliverability.
You can find out whether a mailbox exists without emailing it. Here are the methods, what each can prove and where they fall short.
Read articleFake and throwaway addresses waste sends and distort your numbers. Eight practical signs, and how to catch them automatically.
A step-by-step way to export your audience, verify every address and bring the clean list back, without losing subscribers who are real.
A mistyped address at checkout means a lost order confirmation, a failed receipt and a customer who never returns. Here is how to catch it.
Black Friday 2026 is on 27 November. Clean your list in the next few weeks so your biggest send of the year lands in the inbox, not in spam.
A bounce is a message that could not be delivered. Learn the two types, what causes them and the steps that bring your rate down.
Twelve practical rules for landing in the inbox when you send to many people at once, from list quality to authentication and content.
People use the two terms as if they meant the same thing. They are close, but each answers a different question. Here is how to tell them apart.
A complete walk-through of verifying a list: prepare the file, upload, read the results, segment and import the clean list into your tool.
Free trials attract fake accounts. A layered approach using email checks, confirmation and limits that stops most abuse without hurting real users.
In e-commerce a wrong address means a lost receipt, a lost recovery email and a support ticket. Where to verify and what to do with the results.
BIMI shows your logo next to messages in supporting inboxes. What it needs, what it costs in effort and who should bother.
Mailbox providers rely on machine learning to judge senders. What that means for content, engagement and list quality.
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