https://senderaudit.com/blog/en/tags/best-practices/Recent content in Best Practices on Sender Audit BlogHugoenTue, 03 Feb 2026 00:00:00 +0000https://senderaudit.com/blog/en/email-deliverability/Tue, 03 Feb 2026 00:00:00 +0000https://senderaudit.com/blog/en/email-deliverability/<p>You send emails, but do they actually reach the inbox? <strong>Deliverability</strong> is the rate at which your emails land in recipients&rsquo; inboxes, as opposed to the spam folder or outright rejection. It&rsquo;s a critical issue for any business that communicates via email.</p> <h2 id="why-your-emails-arent-arriving">Why Your Emails Aren&rsquo;t Arriving</h2> <p>ISPs (Gmail, Outlook, Yahoo, etc.) use hundreds of signals to decide the fate of each email. Here are the main ones:</p> <h3 id="1-dns-authentication">1. DNS Authentication</h3> <p>This is the absolute prerequisite. Without it, you&rsquo;re a stranger to ISPs.</p>