Pricing Transparency
Effective CPM Cost Comparison Calculator
Calculate and compare the exact cost per thousand emails (CPM) across major providers and dedicated MTA clusters.
Benchmark Effective CPM
$0.85 / 1K
$2,550 / mo total spend
AutoSMTP Effective CPM
$0.096 / 1K
$289 / mo flat rate
CPM Savings Factor
8.8x Cheaper
Direct infrastructure cost reduction
Monthly Retained Capital
$2,261 / mo
$27,132 annualized savings
CPM Efficiency Metric
Sending 3,000,000 emails per month with AutoSMTP costs just $0.096 per thousand messages. Every additional million emails you send drives your effective CPM even lower.
Lock in Sub-$0.10 CPM with Dedicated AutoSMTP
Flat-rate dedicated MTAs ensure you never pay punitive per-message cloud fees again.
Understanding the Economics of CPM in High-Volume Email
CPM (Cost Per Mille / Cost Per Thousand) is the universal metric of email delivery economics. When sending tens or hundreds of thousands of messages, small fractional differences in CPM translate into thousands of dollars in annual budget variance.
Inverse Scaling
On dedicated infrastructure, your CPM drops asymptotically towards zero as send volume increases, whereas on cloud SaaS ESPs, CPM remains flat or increases with tier surcharges.
Hidden Add-On Fees
Commercial ESPs advertise low entry prices but tack on separate line items for dedicated IPs ($30-$80/IP), sub-users, dedicated IP pools, and inbound parse webhooks.
Flat Infrastructure Predictability
Financial planning is simplified when email costs remain fixed regardless of marketing promotions, flash sales, or viral audience spikes.