sendvia against Resend, Postmark, Mailgun and SendGrid: what each costs at 100,000 emails a month, who owns the sending account in each case, and where each of the four is the better buy.
100,000 a month is the reference volume for this whole site: large enough that per-email pricing has started to matter, small enough that most senders recognise it. Every figure below is the cheapest route a customer actually has at that volume, worked out from what each provider publishes. Where a figure is computed from a published rate for extra emails rather than quoted as a plan price, the note beside it says so.
| Emails per month | sendvia | Resend | Postmark | Mailgun | SendGrid | Raw SES |
|---|---|---|---|---|---|---|
| 100,000 | $29.00$19.00 + $10.00 SES | $35.00 | $126.00Based on Postmark's Platform plan at $18.00 plus their published $1.20 per additional 1,000. | $90.00 | Not publishedSendGrid does not print a price against a send volume. See their pricing page. | $10.00 |
| Prices verified . Each figure is the cheapest route worked out from what a provider actually publishes. Some are a quoted plan price; others are computed from a published rate for extra emails, and a note beside those says so. sendvia cost is a flat $19 plus Amazon SES at cost. | ||||||
The bottom row is Amazon SES on its own, at the rate Amazon charges anybody. It is not a competing product, it is the floor: the sendvia row is that floor plus a flat platform fee, which is why those two move together and the rest do not. The cost calculator runs the same arithmetic at seven volumes from 1,000 to 5,000,000, with a slider for anything in between.
Each page below prices both sides at 10,000, 100,000, 500,000 and 1,000,000 emails a month, sets the feature rows against each other with the page every value was read from, and ends with the scenarios where the other one is the better buy. That last section is the point. A comparison with no honest concession in it is an advert with a table on top.
Resend is the youngest of the four and the one an application developer is most likely to reach for first. It is built by the same team as React Email, so an email can be a component rather than a string of markup, and up to 3,000 emails a month it costs nothing at all.
sendvia vs Resend covers price, ownership, the send interfaces on both sides, and every scenario the data records where Resend is the better buy.
Postmark is the one to beat on support. There is a published response time, live chat in business hours, and staff who will work a delivery problem with you rather than point you at a status page.
sendvia vs Postmark covers price, ownership, what each side keeps and for how long, and every scenario the data records where Postmark is the better buy.
Mailgun is the widest of the four. It receives mail as well as sending it, checks addresses before you send to them, and keeps the raw message around long enough to post it somewhere else.
sendvia vs Mailgun covers price, ownership, the send interfaces on both sides, and every scenario the data records where Mailgun is the better buy.
SendGrid is the only one of the four that prints no price against a send volume. Its own page gives an entry price per plan and never says how many emails either price buys, so its column above is empty rather than filled with a guess.
sendvia vs SendGrid covers what each side publishes about price, ownership, contact handling, and every scenario the data records where SendGrid is the better buy.
Every value in every table carries the page it was read from and the date it was read, and each of the four pages prints those links beside the cells themselves. The rival column comes from that provider's own documentation. The sendvia column comes from the code that implements each answer rather than from a marketing page, because the code is the only thing that cannot be out of date about what sendvia does.
Some cells read "Not recorded" rather than yes or no. That is deliberate: the documentation did not answer either way, and a blank is a more honest cell than an invented answer. What is sendvia? covers the limits on our side of the comparison, including the ones no table has a row for.