DNS & DomainsMost DNS guides focus on SPF, DKIM, and DMARC — but PTR records and reverse DNS are just as critical for email deliverability. Here's what they do, why receiving servers check them, and how to set yours up correctly.
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DeliverabilityHitting a spam trap can damage your sender reputation faster than almost anything else — and most senders have no idea it's happening. Here's how spam traps work, where they hide, and what you can do to keep your list clean.
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Self Hosted EmailChoosing a VPS for self-hosted email isn't like choosing one for a web app. IP reputation, port 25 availability, and reverse DNS are the factors that determine whether your mail server actually works.
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SMTP & InfrastructureShould you send email from a dedicated IP or a shared pool? The answer depends on your volume, your sending patterns, and how much control you need over your reputation. This guide breaks down the real tradeoffs.
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Email OperationsEmail archiving isn't just about storage — it's about legal protection, compliance, and operational continuity. Here's a practical guide to building an archiving strategy that actually works for your business.
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Email HostingUsing a free Gmail or Outlook address for business is tempting — it's free and familiar. But the tradeoffs go beyond just how it looks. Here's an honest comparison of what you get and what you give up.
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SMTP & InfrastructureRunning an SMTP relay without active monitoring is flying blind. Here's what metrics actually matter, what log data tells you, and how to build an alerting setup that catches problems before your users do.
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Email ComplianceAn email retention policy defines how long your business keeps email and when it gets deleted. Without one, you're either keeping everything forever (a liability) or deleting things you'll later wish you hadn't (also a liability). Here's how to get it right.
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Email SecurityBusiness Email Compromise attacks target executives specifically because their accounts carry the authority to approve payments, transfers, and decisions. Here's how these attacks work and what you can do to make executive accounts significantly harder to exploit.
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