SendGrid is Twilio’s email platform — one of the oldest and largest, built for high-volume senders and enterprise deliverability programs.
SendGrid removed its permanent free plan; after 60 days you must pay. MailBlastr keeps a genuinely free tier — 3,000 emails/month, 100/day, 1,000 contacts, one domain — with no card and no expiry, which is what side projects and pre-launch products actually need.
SendGrid splits transactional (Email API) and marketing (Marketing Campaigns) into two products with two price ladders. Every MailBlastr plan includes both: the REST API for product email plus campaigns, audiences, segments, automations, and A/B testing for marketing.
SendGrid tiers, contact-storage add-ons, and per-product pricing make forecasting hard. MailBlastr is one plan ladder priced by volume, with email credits that never expire for spikes.
Typed SDKs in 8 languages plus a CLI, copy-paste quickstarts, an MCP server for AI agents, and guided DNS setup with registrar one-click flows. SendGrid’s v3 API works, but its DX shows its age.
Every MailBlastr plan includes ticket support and Scale adds Slack support — no paid support add-on tiers.
At multi-million monthly volumes with dedicated IP pools, subuser hierarchies, SSO requirements, and a deliverability team on retainer, SendGrid (and the Twilio ecosystem around it) is built exactly for you. MailBlastr’s stock plans top out at 2.5M emails/month before Enterprise.
The free tier (3,000 emails/month) needs no card — you can run the whole migration before paying anything.
Add your sending domain and follow the guided DKIM, SPF, and DMARC setup. One-click flows exist for Cloudflare, GoDaddy, and Namecheap; verification usually completes in minutes.
Replace your current send with one HTTPS request or a typed SDK in 8 languages. Batch endpoints, idempotency keys, and scheduling are built in.
Subscribe a webhook to delivered, opened, clicked, bounced, complained, and unsubscribed events — every request is signed so you can verify the source.
Bring audiences over via CSV or the contacts API; templates port as plain HTML or rebuild in the block editor.
The send call, after the switch
curl -X POST https://www.mailblastr.com/api/emails \
-H "Authorization: Bearer mb_xxxxxxxx" \
-H "Content-Type: application/json" \
-d '{
"domain": "acme.com",
"from": "Acme <hello@acme.com>",
"to": ["ada@example.com"],
"subject": "Welcome to Acme",
"html": "<p>You are in.</p>"
}'| Feature | MailBlastr | SendGrid |
|---|---|---|
| Free tier | 3,000 emails/month (100/day), 1,000 contacts, 1 domain — no card required | 60-day trial (100/day), then paid only |
| Entry paid plan | $14/mo — 50,000 emails, 2,500 contacts, 10 domains | Essentials from $19.95/mo |
| 100k emails/month | $24/mo (Pro 100k) · $63/mo (Scale, 1000 domains) | Essentials/Pro tiers — up to $89.95/mo with dedicated IP |
| Extra volume | $0.90 per 1,000 emails — credits never expire | Tier upgrades; contact storage billed separately in Marketing Campaigns |
| Transactional + marketing in one | API sends, campaigns, automations, and audiences in every plan | Two products: Email API and Marketing Campaigns, priced separately |
| Contacts & audiences | Included on every plan — 1,000 on Free, up to 250,000 on stock plans | Contact storage priced separately (Marketing Campaigns) |
| Automations | Included — visual automations, 10,000 runs/month | In Marketing Campaigns (separate product) |
| A/B testing | ✓ | In Marketing Campaigns (separate product) |
| Inbound receiving | ✓ | Inbound Parse webhook |
| Event webhooks | Signed webhooks: delivered, opened, clicked, bounced, complained, unsubscribed | ✓ |
| Official SDKs | 8 languages + CLI | SDKs for major languages |
| Log retention | 30 days on every plan | Varies by plan (activity history limited) |
| Dedicated IP | Add-on on Scale — $21/30 days | Pro plan and above |
| INR billing for India | ✓ | ✗ |
SendGrid pricing and features summarized from public pricing pages, last checked 2026-08-02. MailBlastr figures come from the live plan catalog.
Want the row-by-row breakdown? See the full MailBlastr vs SendGrid comparison.
No — SendGrid replaced its permanent free tier with a 60-day trial at 100 emails/day. MailBlastr’s free plan (3,000 emails/month, 100/day) has no expiry and needs no card.
MailBlastr’s entry paid plan covers 50,000 emails/month for less than SendGrid Essentials ($19.95/month), and includes marketing features SendGrid sells separately in Marketing Campaigns. At 100k emails you stay far below SendGrid Pro ($89.95/month) unless you need a dedicated IP, which MailBlastr offers as a Scale add-on.
Yes, built in: campaigns, audiences, segments, topics, A/B testing, polls, and visual automations ship with every plan — there is no second product to buy.
Stock plans go to 2.5M emails/month, with Enterprise above that. If you send tens of millions monthly with IP pools and subusers, SendGrid’s enterprise machinery is the safer fit — that is the honest boundary.
Verify your domain (guided DKIM/SPF/DMARC), swap the send call to POST /emails or a typed SDK, and re-point event webhooks. The event model (delivered, opened, clicked, bounced, complained, unsubscribed) maps directly.
Free tier with 3,000 emails a month — API, campaigns, automations, and webhooks included. No card required.