How to Verify an Email Address Before Sending
Learn how to verify an email address before you send: check syntax, MX records and the mailbox, use free and paid verifiers, and read results.
Deliverability
Articles
Why Email Addresses Bounce and How to Prevent It
Email bounce prevention explained: hard vs soft bounces, Gmail and Outlook error codes, how bounces affect sender reputation and how to cut them.
Transactional Emails Explained: What Counts and How to Send Them
Transactional emails confirm, deliver or update something a person already asked for. See the main types, the legal test and sending best practices.
Email Sending Tips: How to Get Your Messages Delivered and Read
Email sending tips for inbox placement and replies: authenticate your domain, clean your list, pace volume, write honest subject lines and follow up.