Sending service comparison
SendGrid vs Mailgun: what sending costs at every volume
Compare SendGrid and Mailgun at every recorded email volume, including the full monthly total with GoodPostal.
What does each service cost at your email volume?
Monthly estimates in United States dollars, rounded to whole dollars. Taxes, temporary credits and optional add-ons are excluded.
Last checked Sep 21, 2026. See SendGrid's pricing page.
| Emails a month | Plan that fits | SendGrid monthly | GoodPostal | Total |
|---|---|---|---|---|
| 10,000 | Essentials 50KPlan fee $19.95; 50,000 included emails. | $20 | $20 | $40 |
| 25,000 | Essentials 50KPlan fee $19.95; 50,000 included emails. | $20 | $20 | $40 |
| 50,000 | Essentials 50KPlan fee $19.95; 50,000 included emails. | $20 | $22 | $42 |
| 100,000 | Essentials 100KPlan fee $34.95; 100,000 included emails. | $35 | $24 | $59 |
| 250,000 | Essentials 100KPlan fee $34.95; 100,000 included emails. | $170plus 150,000 emails over the plan ($135) | $32 | $202 |
| 500,000 | Essentials 100KPlan fee $34.95; 100,000 included emails. | $395plus 400,000 emails over the plan ($360) | $44 | $439 |
| 1,000,000 | Pro 700KPlan fee $499; 700,000 included emails. | $739plus 300,000 emails over the plan ($240) | $69 | $808 |
Last checked Sep 21, 2026. See Mailgun's pricing page.
| Emails a month | Plan that fits | Mailgun monthly | GoodPostal | Total |
|---|---|---|---|---|
| 10,000 | Basic 10KPlan fee $15; 10,000 included emails. | $15 | $20 | $35 |
| 25,000 | Basic 10KPlan fee $15; 10,000 included emails. | $42plus 15,000 emails over the plan ($27) | $20 | $62 |
| 50,000 | Foundation 50KPlan fee $35; 50,000 included emails. | $35 | $22 | $57 |
| 100,000 | Foundation 100KPlan fee $75; 100,000 included emails. | $75 | $24 | $99 |
| 250,000 | Scale 250KPlan fee $215; 250,000 included emails. | $215 | $32 | $247 |
| 500,000 | Scale 500KPlan fee $400; 500,000 included emails. | $400 | $44 | $444 |
| 1,000,000 | Scale 750KPlan fee $550; 750,000 included emails. | $700plus 250,000 emails over the plan ($150) | $69 | $769 |
GoodPostal is a flat $19 a month plus $0.05 per 1,000 emails. Verified nonprofits pay $9.50 plus the same rate.
No free tier recorded for SendGrid.
No free tier recorded for Mailgun.
Which one when
SendGrid
SendGrid is the household name in developer email, with infrastructure trusted at enormous scale. GoodPostal adds the email marketing layer, so you can design and send newsletters with SendGrid instead of building against its APIs.
GoodPostal registers a SendGrid event webhook for you, with your consent, and verifies its cryptographic signature on every incoming event before trusting it.
GoodPostal tracks your SendGrid quota and applies your overage protection setting: pause the campaign at the limit or let it continue, your choice, never a surprise.
Mailgun
Mailgun is the developer favorite for pay-as-you-go sending with excellent deliverability tooling and straightforward APIs. GoodPostal turns that into point-and-click email marketing: send newsletters with Mailgun without writing a line of code.
GoodPostal is plan-aware for Mailgun and applies your overage protection setting before a campaign would blow through your included volume.
What else should you know about SendGrid and Mailgun pricing?
Which is cheaper at 10,000 emails a month, SendGrid or Mailgun?
Mailgun has the lower recorded total with GoodPostal. SendGrid costs $20 a month on Essentials 50K at 10,000 emails, or $40 including GoodPostal. Mailgun costs $15 a month on Basic 10K at 10,000 emails, or $35 including GoodPostal.
What do SendGrid and Mailgun cost at 100,000 emails a month?
SendGrid costs $35 a month on Essentials 100K at 100,000 emails, or $59 including GoodPostal. Mailgun costs $75 a month on Foundation 100K at 100,000 emails, or $99 including GoodPostal.
Does SendGrid or Mailgun include free emails?
No free tier recorded for SendGrid. No free tier recorded for Mailgun. SendGrid costs $20 a month on Essentials 50K at 10,000 emails, or $40 including GoodPostal. Mailgun costs $15 a month on Basic 10K at 10,000 emails, or $35 including GoodPostal.
What is the total with GoodPostal at 50,000 emails a month on SendGrid and on Mailgun?
SendGrid costs $20 a month on Essentials 50K at 50,000 emails, or $42 including GoodPostal. Mailgun costs $35 a month on Foundation 50K at 50,000 emails, or $57 including GoodPostal.
Use the pricing data
Every recorded plan, email volume, monthly price, send allowance, and checked date, refreshed every Sunday. Free to use in articles, comparisons, and tools under the Creative Commons Attribution 4.0 license. Credit GoodPostal with a link.
SendGrid
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