Email Infrastructure
How sending infrastructure actually works, for the practitioner who wants to understand the machinery, not just use it.
4 guides and growing
Why this matters
When deliverability breaks, most senders discover the tool they trusted was never really infrastructure. Understanding the sending stack, the domain, DNS, SMTP relay, and IP, is what lets you tell a content problem from an infrastructure one.
What you’ll be able to do
The guides
AWS SES for Cold Email: Why the Delivery Layer Matters
Amazon SES is a cloud SMTP relay that sends at scale without per-mailbox limits. Here is what it gives cold email, and what it still leaves to you.
DNS Records for Email: MX, PTR, SPF, DKIM, and DMARC
Every deliverability check starts in your DNS. Here is what each email record does, MX, PTR, SPF, DKIM, DMARC, and how they work together.
The Complete Guide to Email Infrastructure
The machinery behind sending: domains, DNS, SMTP relays, IPs, and reputation. Here is how the pieces fit, and why the app-wrapper model struggles.
What Is SMTP, and How Does It Send Your Email?
SMTP is the protocol that transmits every email. Here is the handshake it runs, the reply codes it returns, and what they tell you when mail fails.
How RepMail helps here
The guides teach the craft. These are the parts RepMail handles for you.
Explore RepMail- Native AWS SES delivery, not a mailbox wrapper
- Guided DNS and domain verification
- Real-time bounce and complaint telemetry via AWS SNS