30 free calculators covering deliverability, infrastructure sizing, list health, compliance, and email revenue optimization. Built from production data across managed sending environments.
Calculate 12-month ROI of dedicated infrastructure vs your current ESP. Adjust all prices to match your specific quotes.
Open CalculatorGenerate a week-by-week IP warming schedule with per-ISP daily limits. Includes PowerMTA configuration snippets for week 1.
Open CalculatorCalculate messages per hour based on your IP count and PowerMTA configuration. Get server hardware recommendations.
Open CalculatorFind the optimal send cadence based on list engagement metrics and unsubscribe risk.
Open CalculatorCalculate net subscriber growth and project when you reach your target list size.
Open CalculatorEstimate your infrastructure sending capacity based on IPs, connections, and delivery timing.
Open CalculatorGenerate a day-by-day IP warm-up schedule to reach target daily volume safely.
Open CalculatorEstimate inbox vs spam placement across Gmail, Outlook, and Yahoo based on reputation signals.
Open CalculatorQuantify the revenue and security impact of weak or missing DMARC enforcement on your domain.
Open CalculatorAssess your spam trap exposure risk based on list acquisition method and hygiene practices.
Open CalculatorCompare total monthly cost between your current ESP and dedicated sending infrastructure.
Open CalculatorCompare transactional SMTP relay pricing across SendGrid, Postmark, SES, and Mailgun.
Open CalculatorDetermine server RAM, CPU, disk, and IP requirements for your peak PowerMTA or Postfix sending volume.
Open CalculatorModel the revenue and list size impact of switching to double opt-in or re-confirmation campaigns.
Open CalculatorEvaluate your bounce rate against ISP thresholds and determine required list hygiene actions.
Open CalculatorCalculate RPM, revenue per subscriber, and subscriber lifetime value benchmarked against your industry.
Open CalculatorQuantify the cost savings and deliverability improvements from removing inactive subscribers.
Open CalculatorEstimate the total cost and timeline for migrating your email program to new infrastructure.
Open CalculatorModel the revenue-vs-churn tradeoff at different sending frequencies to find the optimum cadence.
Open CalculatorAudit your SPF record DNS lookup count and find which includes are pushing you over the 10-lookup limit.
Open CalculatorEvaluate your unsubscribe rate against industry benchmarks and diagnose likely root causes.
Open CalculatorCompare your spam complaint rate to Gmail and Yahoo thresholds and model the deliverability impact.
Open CalculatorScore your sender reputation across the signals that ISPs use to make inbox vs spam decisions.
Open CalculatorCalculate full ROI of dedicated email infrastructure including deliverability and cost improvements.
Open Calculator