email-warmup

What problem does it solve?

New sending domains and IPs have no established reputation with mailbox providers, so sudden high-volume sends are indistinguishable from spammer activity, triggering deferrals, spam folder placement, or outright blocks that can take weeks to recover from.

Core Features & Use Cases

• Tailored warmup schedules: Custom volume ramps for high-volume marketing, per-mailbox cold outreach, and transactional email, with strict 2x daily volume increase rules to avoid triggering spam filters.
• Provider-specific guidance: Built-in instructions for Amazon SES, SendGrid, Postmark, and Resend, including how to leverage each platform's native warmup automation features.
• AI agent safeguards: Specialized guardrails for AI-driven sending, including infrastructure-level rate limits, per-recipient cooldowns, and negative signal monitoring to prevent accidental reputation damage from agent bugs or loops.
• Use case example: A team launching a new marketing domain can use this skill to follow a 28-day gradual volume ramp, send first to their most engaged contacts, and monitor bounce/complaint rates to avoid spam folder placement.

Quick Start

Use the email-warmup skill to create a 28-day gradual sending volume schedule for your new marketing domain, starting with 50 emails on day 1 and ramping up to full volume by day 29, while prioritizing sends to your most recently engaged contacts.