CompareAlternatives

SendGrid alternatives for transactional email in 2026

By Tunbosun Ayinla, Founder of Prontuno. Last updated: .

SendGrid is Twilio’s email platform, covering a transactional Email API and a separate Marketing Campaigns product.

If you send transactional email only and need a longer message history, the shortlist below covers the main options. Each section also notes where the provider is the weaker choice.

Reasons to switch

Why teams look beyond SendGrid

Short activity history

Essentials keeps 3 days of searchable activity, which is often too short to investigate a delivery complaint.

Look forAt least 30 days of searchable logs on the plan you are on.

Shared IPs on Essentials

A dedicated IP requires Pro, which starts at $89.95 a month.

Look forA clear path to a dedicated IP, or shared IPs used only by vetted senders.

A broad product for a narrow need

Teams that only send transactional email may not need marketing, validation, and subuser features.

Look forA focused sending product that is quicker to set up and audit.

Side by side

All six alternatives compared

Emails for a $99 monthly budget and how long each provider keeps message history, with SendGrid included for reference.

SendGrid alternatives compared
Provider Emails for $99 Message history Compared with SendGrid
Prontuno

500,000

30 days 2.9× as many emails as SendGrid for $99
Postmark

79,000

45 days, with longer retention as an add-on 54% fewer emails than SendGrid for $99
Resend

171,000

30 days on Free, varies on paid plans About as many emails as SendGrid for $99
Mailgun

121,000

1 day on Basic, 5 days on Foundation, 30 days on Scale 29% fewer emails than SendGrid for $99
Amazon SES

618,750

Events published to other AWS services 3.6× as many emails as SendGrid for $99
Cloudflare Email Service

271,000

Metrics and alerts in the Cloudflare dashboard 1.6× as many emails as SendGrid for $99
SendGrid For reference

171,000

3 days on Essentials, 7 days on Pro —

SendGrid figures come from its published plans. See SendGrid pricing. Amazon SES is shown on Essentials; à la carte sends 990,000 for $99. Checked September 26, 2026.

One by one

Each alternative compared with SendGrid

Prontuno

2.9× as many emails as SendGrid for $99

At $99 · Standard · 500,000 included

Prontuno vs SendGrid 

Best for
Teams sending transactional email at volume who want a fixed monthly price and shared IPs used only by reviewed senders.
Watch out for
Transactional email only, no inbound email yet, no open or click tracking, and every account is reviewed before it can send.
Prontuno compared with SendGrid
Feature Prontuno SendGrid
Emails for $99 500,000 171,000
Message history 30 days 3 days on Essentials, 7 days on Pro
Sending domains 100 per team on credits, 1,000 on Standard and Plus, unlimited on Unlimited Varies by plan
Dedicated IP Included with Unlimited, warmed and monitored by Prontuno 1 included on Pro and Premier

Postmark

54% fewer emails than SendGrid for $99

At $99 · Pro · 50,000 included + 29,000 overage

Prontuno vs Postmark 

Best for
Teams that want inbound processing, stored templates, and transactional and broadcast mail in one account.
Watch out for
Costs climb with volume, and Basic allows only 5 sending domains.
Postmark compared with SendGrid
Feature Postmark SendGrid
Emails for $99 79,000 171,000
Message history 45 days, with longer retention as an add-on 3 days on Essentials, 7 days on Pro
Sending domains 5 on Basic, 10 on Pro, unlimited on Platform Varies by plan
Dedicated IP From $50 a month per IP, for 300,000 or more emails a month 1 included on Pro and Premier

Resend

About as many emails as SendGrid for $99

At $99 · Pro · 100,000 included + 71,000 overage

Prontuno vs Resend 

Best for
Developers who build email with React Email and want SDKs, inbound email, and marketing from one vendor.
Watch out for
Per-email overages add up at volume, and dedicated IPs need the Scale plan.
Resend compared with SendGrid
Feature Resend SendGrid
Emails for $99 171,000 171,000
Message history 30 days on Free, varies on paid plans 3 days on Essentials, 7 days on Pro
Sending domains 3 on Free, 10 on Pro, 1,000 on Scale Varies by plan
Dedicated IP $30 a month on Scale, for senders above 3,000 emails a day 1 included on Pro and Premier

Mailgun

29% fewer emails than SendGrid for $99

At $99 · Foundation · 100,000 included + 21,000 overage

Prontuno vs Mailgun 

Best for
Teams that route inbound email and validate addresses, and want live support on higher plans.
Watch out for
Log retention is short on lower plans, and Basic allows a single sending domain.
Mailgun compared with SendGrid
Feature Mailgun SendGrid
Emails for $99 121,000 171,000
Message history 1 day on Basic, 5 days on Foundation, 30 days on Scale 3 days on Essentials, 7 days on Pro
Sending domains 1 on Basic, 1,000 on Foundation and Scale Varies by plan
Dedicated IP 1 included on Foundation, dedicated IP pools on Scale 1 included on Pro and Premier

Amazon SES

3.6× as many emails as SendGrid for $99

At $99 · Essentials · $0.16 per 1,000 emails

Prontuno vs Amazon SES 

Best for
Teams already on AWS that want the lowest price per email and can build their own event handling.
Watch out for
New accounts start in the sandbox, and delivery events are published to other AWS services rather than an email log.
Amazon SES compared with SendGrid
Feature Amazon SES SendGrid
Emails for $99 618,750 171,000
Message history Events published to other AWS services 3 days on Essentials, 7 days on Pro
Sending domains Verified identities per AWS account and Region Varies by plan
Dedicated IP $24.95 a month per IP, or managed dedicated IPs 1 included on Pro and Premier

Cloudflare Email Service

1.6× as many emails as SendGrid for $99

At $99 · Workers Paid · 3,000 included + 268,000 overage

Prontuno vs Cloudflare Email Service 

Best for
Apps already built on Cloudflare Workers with modest sending volume.
Watch out for
Sending is in public beta, new accounts start with a conservative daily quota, and each zone is limited to 30 domains.
Cloudflare Email Service compared with SendGrid
Feature Cloudflare SendGrid
Emails for $99 271,000 171,000
Message history Metrics and alerts in the Cloudflare dashboard 3 days on Essentials, 7 days on Pro
Sending domains 30 per zone Varies by plan
Dedicated IP Not listed 1 included on Pro and Premier

FAQ

Questions about SendGrid alternatives

What is the best alternative to SendGrid?
It depends on what you send. For transactional email at a fixed monthly price, Prontuno Standard sends 500,000 emails for $99. For the lowest price per email at most budgets, Amazon SES costs less but needs more setup on AWS. For inbound email or stored templates, Postmark and Resend cover more.
Is Prontuno cheaper than SendGrid?
At a $99 monthly budget, Prontuno Standard sends 500,000 emails and SendGrid sends 171,000. Prontuno sends more at that budget, but SendGrid can cost less at lower volumes. Check your own volume in the pricing calculator. Checked September 26, 2026.
Can I switch from SendGrid without rewriting my code?
If you send over SMTP, yes: only the host, port, and credentials change. SendGrid’s v3 API nests recipients in personalizations and the body in a content array, so each send call needs rewriting for Prontuno’s flatter from, to, subject, and html fields. If your app sends email from one place, such as a mailer class, updating it is usually a small change.
When is SendGrid the better choice?
SendGrid is the better choice if you need marketing campaigns alongside transactional email; you need email address validation; you manage many customers through subusers; or you need inbound email parsing.
Do I need a new domain to switch from SendGrid?
No. Add your existing domain to Prontuno and publish the DNS records it generates. They use their own names, so your SendGrid records keep working until you finish switching.
Does Prontuno track opens and clicks?
No, by design. Prontuno sends your links and content exactly as written, so password reset and sign-in links are never rewritten through a tracking domain, and no tracking pixel is added. Delivery, deferral, and bounce events are still reported in your logs and webhooks. To measure clicks, add a parameter to links on your own domain and record it in your app.
Can I send marketing email with Prontuno?
No. Prontuno is for transactional email only, such as password resets, receipts, and account alerts. Every account is reviewed, which keeps marketing mail off the shared IPs. Newsletters and campaigns need a separate provider.

Keep comparing

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