Email cost calculator
Enter how many mailboxes you need and how many subscribers you have. This prices fourteen providers against the same two jobs, using the dataset behind every comparison on this site.
Mailboxes on your own domain
| Provider | Per month | Per year |
|---|---|---|
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Sending the newsletter
| Provider | Per month | Per year |
|---|---|---|
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How this is calculated
Every number starts from a published price we read off the provider's own pricing page in August 2026 and recorded in our dataset, the same one that fills the tables on our comparison pages and the pricing guide. Where a provider publishes annual billing we use the effective monthly rate; where it does not, the monthly sticker is the effective price. Each provider's billing basis is spelled out on its own pricing breakdown.
Providers publish prices at fixed tiers, not as a smooth curve. When your numbers land exactly on a published tier the figure is exact. When they land between tiers we interpolate and mark the result est, because the real bill will be the next tier up rather than a blend. Past the largest published tier we extend the last slope, which is a guess and gets the same label. Nobody should sign a contract off this page; use it to see the shape of the curve, then check the provider's own page for your exact count.
Two things the table deliberately does not model. Overage charges, because they depend on how often you send rather than how many people you store, and they can double a bill (SendGrid and Constant Contact are the ones to watch). And Substack, which shows as zero because it charges nothing per subscriber and takes 10 percent of paid subscription revenue instead; if you sell subscriptions, read what Substack actually costs rather than trusting the zero.
Why the two halves are separate
Most teams end up paying two bills. One for mailboxes, so people can send and receive at your domain. One for a list tool, so you can send a newsletter to more than a handful of people. The suites do not do newsletters and the newsletter platforms do not give your team working inboxes, so the honest comparison is the sum, which is what the verdict above adds up.
That sum is the whole argument for flat pricing, and also its limit. LetterDuck is $50 per domain and covers both jobs with unlimited addresses and unlimited subscribers, which wins as either number grows. At one mailbox and no newsletter it plainly loses to a $1 Zoho seat, and the calculator will tell you so.