Understanding Email Deliverability & Spam Tests
Why are my emails going to Spam?
Emails land in the spam folder primarily due to poor sender reputation, missing DNS authentication records, or triggering spam filters with specific keywords. Using an email tester helps you identify these exact issues before sending a real campaign.
What is SPF, DKIM, and DMARC?
SPF authorizes specific IP addresses to send mail on behalf of your domain. DKIM adds a cryptographic signature to verify the email integrity. DMARC ties them together, giving you control over how receiving servers handle unauthorized messages.
How does the SpamAssassin score work?
SpamAssassin evaluates emails using hundreds of rules analyzing headers, body text, and HTML formatting. A lower score is always better. If your score exceeds a certain threshold, your message will likely be flagged as spam.
How can I improve my email deliverability score?
Start by publishing valid SPF, DKIM, and DMARC records. Ensure your sending IP has a matching rDNS (PTR) record and monitor your RBL status. Use our mail tester to verify before every campaign.