Compared against the top-rated Email Security & Blacklist tools on price, rating and free-tier availability.
Twilio SendGrid is the most widely used email API for transactional and marketing email. Handles billions of emails per month for companies like Uber and Airbnb. SendGrid (Twilio) is founded 2015, Denver, USA.
If any of these matter for your use case, the alternatives below may be a better fit.
| Tool | Rating | From | Free tier | Trial | |
|---|---|---|---|---|---|
| SendGrid (Twilio) (this one) | 4.2 | Free (100/day) / $19.95/month | ✓ | ✓ | |
| Spamhaus Spamhaus operates the most widely used email blacklists — DBL, SBL, XBL, and PBL — used by 9 in 10 internet providers wo |
4.8 | Free data, paid data feeds | ✓ | ✓ | Details |
| dmarcian dmarcian makes it easy to implement and monitor DMARC — visualising who is sending email on your behalf and protecting y |
4.7 | Free / $20/month | ✓ | ✓ | Details |
| Postmark Postmark is a transactional email service known for industry-leading deliverability. Dedicated IP pools for transactiona |
4.7 | From $15/month | — | ✓ | Details |
| Google Postmaster Tools Google Postmaster Tools provides domain reputation scores, spam rates, and delivery error reports for bulk email senders |
4.5 | Free | ✓ | ✓ | Details |
| Proofpoint Email Security Proofpoint is the market leader in enterprise email security — protecting against phishing, BEC, malware, and spam. |
4.5 | Contact for pricing | — | ✓ | Details |
