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    May 18, 2026 6 min readIgor Czajkowski

    Cold Email Deliverability: Avoid Spam in 2026

    Cold Email Deliverability: Avoid Spam in 2026

    The Deliverability Crisis

    With major inbox providers constantly updating their spam filters, landing in the primary inbox is harder than ever. Ensuring deliverability is a key component of modern B2B lead generation strategies.

    Technical Foundation

    Before you send a single email, your technical setup must be flawless. SPF, DKIM, and DMARC are non-negotiable. CORLIN's onboarding wizard automatically verifies your DNS settings to ensure you start on the right foot.

    Warm-up and Sender Reputation

    CORLIN includes an automated inbox warm-up feature that gradually increases your sending volume while simulating human interactions (opening, replying, marking as important). This builds a bulletproof sender reputation.

    AI-Powered Spam Prevention

    Our AI doesn't just write good copy; it analyzes your drafts against known spam triggers. CORLIN will warn you if your email contains too many "salesy" words, excessive links, or formatting that triggers filters. If you want more power, consider CORLIN+ for priority deliverability routing.

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