SG

SendGrid

Twilio's email delivery API — transactional and marketing email at scale

Email Infrastructure Free (100 emails/day) / from $19.95/mo 4.2 / 5 productgrowth.in rating Updated March 2026

productgrowth.in rating

Deliverability
4.5
API Quality
4.5
Documentation
4.4
Value for Money
3.9
India Market Fit
3.8
4.2
Overall Score
Excellent for transactional email. For high-volume Indian teams, AWS SES at $0.10/1,000 emails often wins on cost.

What is SendGrid?

SendGrid (now part of Twilio) is a cloud-based email delivery service used by over 80,000 businesses globally to send transactional and marketing emails at scale. It provides both an SMTP relay and a REST API for sending emails programmatically — OTPs, password resets, order confirmations, receipts, and notifications.

For Indian product teams, SendGrid is typically used for transactional email infrastructure — the emails your app sends automatically. It's not primarily a marketing email tool (that's Mailchimp or Zoho Campaigns territory), though it has a marketing email module. The key value is reliable deliverability, detailed analytics per email, and clean API integration.

Transactional vs marketing email

Transactional emails are system-triggered: OTPs, welcome emails, order receipts, password resets. Marketing emails are campaigns you send to a list. SendGrid handles both but is best-in-class for transactional. If you only need marketing email, Mailchimp or Zoho Campaigns are better fits with cleaner list management UX.

Key features

Email API

RESTful API with SDKs for Node.js, Python, PHP, Ruby, Go, Java, and C#. Well-documented with quick-start guides. Most Indian engineering teams are up and running within an hour.

Deliverability

Dedicated IP options, domain authentication (DKIM/SPF/DMARC), real-time reputation monitoring, and bounce/spam rate tracking. Industry-leading inbox placement rates.

Email Analytics

Per-email delivery stats — opens, clicks, bounces, unsubscribes, spam reports. Event webhook for real-time data into your own systems. Essential for monitoring transactional email health.

Dynamic Templates

Handlebars-based templating system — design once, personalize at send time using JSON data. Drag-drop designer included. Keeps email HTML out of application code.

SMTP Relay

Drop-in SMTP replacement for legacy apps or any service that sends email via SMTP (WordPress, phpmailer, etc.). Update your SMTP settings and SendGrid handles delivery.

Subuser Management

Isolate different email streams (transactional vs marketing, different products) with separate subuser accounts, IPs, and reputations. Prevents one bad campaign from affecting OTP deliverability.

Pricing and India context

Plan Emails/month Price INR equivalent
Free3,000 (100/day)$0Free
Essentials50,000$19.95/mo≈ ₹1,680/mo
Essentials100,000$29.95/mo≈ ₹2,520/mo
Pro1.5M$89.95/mo≈ ₹7,560/mo
Pro2.5M$169.95/mo≈ ₹14,280/mo
High-volume alternative: AWS SES

AWS SES charges $0.10 per 1,000 emails. At 1 million emails/month that's just $100 (~₹8,400). SendGrid's equivalent volume costs $89.95–$169.95/month. For high-volume transactional email (OTPs, notifications), many Indian scale-ups migrate to AWS SES once they cross 500K emails/month. The tradeoff: SES requires more engineering setup and has less built-in deliverability tooling.

SendGrid vs alternatives for India

Tool Best for Price per 100K emails INR billing API quality
SendGrid Transactional + basic marketing ~$29.95 No Excellent
AWS SES High-volume transactional ~$10 Yes (AWS) Good (more setup)
Brevo (Sendinblue) Transactional + marketing mix ~$25 Partial Excellent
Postmark Transactional only, fast delivery ~$15 No Excellent
Mailgun Developer-focused transactional ~$35 No Excellent

Pros and cons

What works well

  • Industry-leading deliverability and reputation management
  • Excellent API with SDKs in all major languages
  • Best-in-class documentation and onboarding
  • Event webhooks for real-time monitoring
  • Dynamic templates keep HTML out of application code
  • Free tier (100 emails/day) adequate for early-stage MVPs

What needs work

  • No INR billing or GST invoicing for Indian companies
  • Expensive at high volume compared to AWS SES
  • Marketing email module is secondary to Mailchimp
  • Support is slow on lower-tier plans
  • Owned by Twilio — pricing and product direction less predictable

Related insights

Setting up email infrastructure for your Indian product?

We help product teams choose the right email stack and set up deliverability correctly from day one. Free 30-minute session.

Talk to us