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Email Campaign Management: Email Campaign Management: How to Run Mass Campaigns at Scale
Email campaign management best practices for sending thousands of emails without hitting spam. Infrastructure, segmentation, and analytics explained.
The infrastructure problem most teams ignore
Sending 10,000 emails from a Gmail account will get you blacklisted within hours. Mass email requires dedicated sending infrastructure — separate domains, warmed IPs, and proper authentication.
Set up a sending domain separate from your primary business domain. If your outreach domain gets flagged, your main company emails still work normally.
Segmentation that actually drives results
Stop sending the same email to your entire list. Segment by engagement level (opened last email vs never opened), company size, and industry. Each segment should get a different subject line and call-to-action.
The 're-engagement segment' — contacts who haven't opened in 60+ days — should get a win-back sequence before you suppress them. 15-20% of inactive contacts will re-engage with the right message.
Metrics that matter at scale
Ignore open rates above 500 contacts — they're unreliable due to Apple MPP and bot opens. Focus on reply rate, click rate, and unsubscribe rate. A healthy campaign has 3%+ reply rate and under 0.5% unsubscribe rate.
Track revenue per email sent, not just opens. This connects your email campaigns directly to business outcomes and helps you justify budget for better tools and data.