Email deliverability terms explained in plain English.
Guides for SMEs using bulk email tools who want to understand SPF, DKIM, DMARC, reputation, bounce rates and why campaigns sometimes land in spam.
Book an Inbox Health CheckFeatured guides
Email Authentication: SPF, DKIM and DMARC Explained
A plain English guide to email authentication for SMEs using bulk email tools.
AuthenticationWhat Is SPF? A Simple Guide to Sender Policy Framework
Learn what SPF means, how SPF records work, and why SPF matters for email deliverability.
AuthenticationWhat Is DKIM? A Simple Guide for Business Email
Learn what DKIM is, how DKIM signatures work, and why DKIM matters for bulk email deliverability.
AuthenticationWhat Is DMARC? A Simple Guide for SMEs
Learn what DMARC is, how it works with SPF and DKIM, and why DMARC protects email deliverability.
DeliverabilityWhat Is Email Deliverability?
A plain English explanation of email deliverability and why SME marketing emails reach inboxes or spam folders.
DeliverabilityWhy Are My Emails Going to Spam?
Understand the common reasons business emails and marketing campaigns land in spam folders.
ReputationWhat Is Domain Reputation?
Learn how domain reputation affects whether business emails reach the inbox or spam folder.
ReputationWhat Is Sender Reputation?
Learn what sender reputation means and why it affects bulk email performance for SMEs.
MetricsWhat Is Bounce Rate in Email Marketing?
Learn what bounce rate means, why emails bounce, and how high bounce rates damage deliverability.
CommercialInbox Health Check for SMEs
Book an Inbox Health Check to find out why your bulk emails may be landing in spam.