A Practical Guide to Email Deliverability with Amazon SES

Why Your Emails Land in Spam

Email deliverability isn't about writing better subject lines — it's about technical trust signals. ISPs like Gmail and Outlook check three things before delivering your email:

SPF — Is this server authorized to send for your domain?

DKIM — Was this email tampered with in transit?

DMARC — What should happen if SPF or DKIM fail?

If any of these are misconfigured, your emails go straight to spam — or get silently dropped.

Amazon SES: Built for Deliverability

Amazon SES handles over 100 billion emails per year. Its infrastructure is trusted by ISPs worldwide, which means you start with a strong sender reputation.

What Syntax Voice Configures for You

SPF records added to your DNS

DKIM signing with 2048-bit keys, automatically rotated

DMARC policy set to quarantine, then gradually tightened

Dedicated IP (optional for high-volume senders)

Bounce and complaint handling to protect your sender reputation

Monitoring Your Reputation

Syntax Voice's dashboard shows your real-time deliverability metrics: bounce rate, complaint rate, and delivery rate. If anything dips below threshold, you'll get an alert before damage is done.

Getting Started

Email setup is included in our Standard and Premium tiers. See pricing or contact us to learn more.