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SendGrid — alternatives and comparison

Key idea:

SendGrid (Twilio since 2018) — transactional email API for SaaS: verification, password reset, receipts. 100 emails/day free; paid from $20/mo. Rivals: Postmark (best inbox placement, $15/mo), AWS SES (cheapest at $0.10/1000), Resend (API-first, developer-friendly), Mailgun (EU ISO 27001), Brevo (marketing + transactional combo). SendGrid has been OK historically but inbox placement dropped since 2022.

Below: details, example, related, FAQ.

Details

  • Pricing: 100/day free, $19.95/mo Essentials (50k emails), $89 Pro
  • Postmark $15/mo for 10k — "transactional-only" policy, best deliverability
  • AWS SES — $0.10 per 1000 emails, but you handle bounces + DKIM yourself
  • Resend — 2023 startup, clean dev UX, generous free tier (3k/mo)
  • Deliverability to Gmail, best to worst: Postmark > Resend > AWS SES > SendGrid

Example

# Postmark — SendGrid Python alternative
import postmarker
client = postmarker.core.PostmarkClient(server_token='xxx')
client.emails.send(
    From='noreply@example.com',
    To='user@example.com',
    Subject='Welcome',
    HtmlBody='<h1>Hi</h1>'
)

# AWS SES via boto3
import boto3
ses = boto3.client('ses', region_name='us-east-1')
ses.send_email(
    Source='noreply@example.com',
    Destination={'ToAddresses': ['user@example.com']},
    Message={'Subject': {'Data': 'Hi'}, 'Body': {'Text': {'Data': 'Hello'}}}
)

Related

Frequently Asked Questions

Best for startups?

Resend (dev UX) or Postmark (inbox placement). SES — if you're already on AWS.

Is SendGrid still relevant?

For large enterprise with contractor relationships — yes. New projects — consider alternatives.

Combined marketing + transactional?

Brevo, Mailgun, Mailjet — support both. SendGrid used to run marketing campaigns but that's a separate product now.