Resend vs SendGrid vs Postmark
Resend, SendGrid and Postmark compared for transactional email in 2026: free tiers, pricing per 1,000 emails, deliverability, developer experience and dedicated IPs.
Quick Answer
Postmark is the deliverability-first choice when password resets and receipts must land in seconds. Resend has the best developer experience and the most generous free tier, at 3,000 emails a month, and suits modern TypeScript/React stacks. SendGrid makes sense mainly when you also need high-volume marketing email or already run on Twilio, since it no longer has a permanent free plan.
Reviewed by TechLogHub Engineering Team. Last updated October 15, 2026. Updated for SendGrid replacing its permanent free plan with a 60-day trial and for current 2026 pricing on Resend (3,000 free/month, Pro $20) and Postmark (from $15/month).
| Feature | Resend | SendGrid | Postmark |
|---|---|---|---|
| Free tier | 3,000/month (100/day), no expiry | 60-day trial, 100/day | 100/month, no overage |
| Entry paid plan | Pro $20/month for 50,000 emails | Essentials from $19.95/month (50,000 emails) | Basic $15/month for 10,000 emails |
| Overage per 1,000 emails | $0.90 | Varies by tier | $1.20-$1.80 depending on plan |
| Dedicated IP | $30/month add-on (Scale plan) | Included from Pro ($89.95/month) | $50/month, Pro+ and 300k+/month |
| Templating | React Email components or HTML | Dynamic templates (Handlebars) + visual editor | Templates with layouts (Mustachio) |
| Marketing / bulk email | Yes (broadcasts) | Yes (Marketing Campaigns, separate product) | Broadcast streams (opt-in only) |
| Transactional vs bulk separation | Per-domain and per-API-key | Subusers and IP pools | Dedicated message streams |
| Inbound email parsing | Yes (inboxes) | Yes (Inbound Parse) | Yes (inbound webhooks) |
| Log / activity retention | 30 days on Free | 3 days (Essentials), 7 days (Pro) | 45 days default, up to 365 on Pro+ |
| Developer experience | Excellent, modern SDKs | Mature but dated | Very good, well-documented |
| Ownership | Independent startup | Twilio | ActiveCampaign |
Pricing at a glance
Entry prices and free tiers as listed on TechLogHub for Resend; the other tools are not listed in the directory yet.
| Tool | Free tier | Starts at | Billing | Plans listed |
|---|---|---|---|---|
| Resend pricing | Yes | — | — | Free · Pro · Scale |
Prices as written by the maker on their listing; medians and context on each tool's pricing page. See the 2026 pricing report for the directory-wide picture.
Resend
A developer-first email API from the team behind React Email, with SDKs for most languages, broadcasts and inbound inboxes.
Resendon TechLogHub: reviews, pricing & alternativesPros
- Most generous free tier of the three: 3,000 emails a month (100 a day), 3 domains, no time limit
- Pro plan at $20/month includes 50,000 emails with no daily cap, and overage is $0.90 per 1,000
- First-class React Email support lets you build templates as typed components in the same repo
- Clean, modern API and SDKs, with a quick start that takes a few minutes
- Dedicated IPs are relatively cheap at $30/month on the Scale plan
- Covers broadcasts, inbound inboxes and automations in one product
Cons
- Younger company with a shorter deliverability track record than Postmark or SendGrid
- Free tier's 100/day cap can bite during launches or bulk notification bursts
- Free plan keeps logs for only 30 days and allows just one webhook endpoint
- Fewer enterprise features, such as SSO, outside Scale and Enterprise plans
- Smaller ecosystem of third-party integrations than SendGrid
Best For
Startups and TypeScript/React teams that want the fastest path to well-formatted transactional email with a usable free tier.
SendGrid
Twilio's long-running email platform, combining a transactional Email API with a separate Marketing Campaigns product.
Pros
- Proven at very high volume, with plan tiers that scale to millions of emails a month
- Essentials starts at $19.95/month for 50,000 emails, and Pro at $89.95/month for 100,000 with a dedicated IP included
- Marketing Campaigns product handles newsletters and segmentation alongside transactional email
- Mature features: dynamic templates, inbound parse, subuser accounts, email validation (Pro+)
- Large ecosystem of integrations, plugins and community answers
- Fits naturally if you already use Twilio for SMS or voice
Cons
- No permanent free tier anymore: just a 60-day trial capped at 100 emails a day
- Essentials has very short searchable activity history (3 days) and no dedicated IP
- Shared-IP deliverability on lower plans has a mixed reputation among developers
- Dashboard and docs feel dated compared with Resend
- Support quality on lower tiers is a common complaint
Best For
Teams sending high volumes of both transactional and marketing email, especially those already on Twilio.
Postmark
A transactional-email service known for fast, reliable inbox delivery. It keeps transactional and bulk traffic in separate message streams.
Pros
- Strong reputation for transactional deliverability and fast delivery times
- Strict separation of transactional and broadcast streams protects your password-reset reputation
- 45-day log retention by default on every plan, the longest of the three
- Excellent templates with layouts, plus detailed bounce and spam-complaint tooling
- Simple, predictable pricing: from $15/month for 10,000 emails
- Highly regarded human support
Cons
- Free plan is only 100 emails a month, enough for testing but not production
- Most expensive per email at low volume, with overages of $1.20 to $1.80 per 1,000 depending on plan
- Dedicated IPs cost $50/month and need 300,000+ emails a month on Pro or higher
- Not designed for cold outreach, and its policy for bulk/marketing sends is strict
- Fewer marketing-automation features than SendGrid
Best For
Products where transactional email is business-critical, such as auth, receipts and alerts, and deliverability matters more than price.
Free tiers and pricing at real volumes
Free tiers diverge sharply. Resend gives 3,000 emails a month with a 100-a-day cap and no expiry, which is enough for an early SaaS. Postmark's free plan is 100 emails a month, intended for testing. SendGrid replaced its long-standing free plan with a 60-day trial capped at 100 a day, so you will be paying within two months. At 10,000 emails a month, Postmark Basic is $15, Resend Pro is $20 (but includes 50,000) and SendGrid Essentials starts at $19.95 (also 50,000). At 50,000 a month Resend and SendGrid cost about $20 while Postmark Basic would run $15 plus 40,000 overage emails at $1.80 per 1,000, or about $87. Moving to Postmark Pro lowers that overage rate to $1.30. At 100,000 a month, Resend Scale is $90, SendGrid Pro is $89.95 with a dedicated IP, and Postmark is notably more. So Postmark is cheapest at very low volume and most expensive in the middle. Resend and SendGrid are roughly at price parity from 50,000 upward, and SendGrid's dedicated IP inclusion on Pro is a real perk if you need one.
Deliverability and reputation isolation
Deliverability depends mostly on your own domain authentication (SPF, DKIM, DMARC) and your sending behaviour. Provider architecture still matters, though, especially on shared IPs where your neighbours' behaviour affects you. Postmark's main design choice is message streams. Transactional mail and broadcasts are separated at the infrastructure level, and Postmark enforces that bulk email goes through broadcast streams. That keeps your password resets away from the reputation risk of your newsletter. Combined with strict sender vetting, this is why Postmark is often the default for auth-critical email. SendGrid offers subusers and IP pools for separation, but on its cheaper shared-IP plans developers often report mixed inbox placement, and the fix is usually a dedicated IP (Pro and up) plus warm-up. Resend lets you separate by domain and API key and offers dedicated IPs at $30/month on Scale, which is cheap. Its track record is shorter, but it has improved quickly. Whatever you pick, send transactional and marketing mail from different subdomains.
Developer experience and templating
Resend is the clear DX leader. The API surface is small, the SDKs are idiomatic, and React Email lets you write templates as JSX components with props, preview them locally and version them with your code. For a Next.js or Node team, a template is just another component. Postmark takes a server-side approach. Templates and layouts live in Postmark, use Mustachio syntax and can be edited by non-developers. Its docs are thorough, and its bounce, spam-complaint and suppression APIs are clean. The activity UI with 45 days of searchable history makes debugging 'I never got the email' tickets painless. SendGrid's dynamic templates (Handlebars) and visual designer are capable but feel older. Its docs span several generations of the product, and its short activity history on lower tiers (3 to 7 days) makes support investigations harder. That said, nearly every framework, CMS and no-code tool has a SendGrid integration, so you rarely have to build glue yourself.
Lock-in and switching costs
Transactional email is one of the easier vendors to swap if you plan for it. The main sources of lock-in are provider-hosted templates, webhook formats for bounces and opens, suppression lists, and the DNS records for domain authentication. To stay portable, render templates in your own code with React Email, MJML or plain HTML and send the result as raw HTML, rather than relying on provider-side template IDs. Wrap sending in a small interface so the provider SDK is used in only one place. Export your suppression list periodically, because re-mailing addresses that bounced or complained is the fastest way to damage a new provider's reputation. When you migrate, add the new provider's DKIM and return-path records alongside the old ones, move low-risk streams first, and watch bounce and complaint rates for a week before moving auth email. If you need a dedicated IP, budget a warm-up period of a few weeks. Resend's React Email approach is the most portable by default, since the templates are just code you own.
Verdict
Choose Postmark if transactional email is critical to your product (logins, magic links, receipts), because its stream separation, long log retention and delivery focus are worth the small premium. Choose Resend if you are a small team on a modern JS/TS stack that wants the best DX, React Email templates and a free tier that covers a real early-stage product. At 50,000 emails a month for $20 it also has the best mid-volume pricing. Choose SendGrid only if you need one vendor for high-volume transactional and marketing email, or if you are already deep in Twilio. Its free plan is gone and its DX lags the other two.