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Twilio Email API
What Twilio Email API is
Twilio Email API lets teams add transactional email to applications and existing cross-channel workflows through the Twilio Console. Its API can send transactional and marketing messages to one or multiple recipients using a JSON request, with real-time logs and deliverability tools. Teams can schedule emails up to seven days ahead and use LiquidJS templates for subject, text and HTML fields. Status reporting includes sent, delivered, undelivered, opened and failed messages. Requests with attachments are limited to 10 MB and 10,000 total recipients. The listed pay-as-you-go plan is free, billed per email sent at a flat $0.0013 per email, with no monthly base fee, feature tiers or overage charges. A 30-day trial provides 100 free emails per day. Twilio says Email and Twilio SendGrid are separate tools built on the same email infrastructure; SendGrid is its platform for high-volume transactional and marketing email. The delivery method is API, logs are retained for seven days, and a dedicated IP option is available.
Who it suits
Twilio Email API suits teams adding transactional or marketing email to applications and workflows through an API. The listed scheduling, templates and status reporting may also suit teams that need to personalize and monitor messages.
What it does well
- Schedule emails up to seven days ahead.
- Supports LiquidJS templates for subject, text and HTML.
- Reports sent, delivered, undelivered, opened and failed statuses.
- No monthly base fee or overage charges.
What to know first
- Requests with attachments are limited to 10 MB.
- A request is limited to 10,000 total recipients.
- Delivery log retention is seven days.
- The 30-day trial allows 100 free emails per day.
Limits
The free trial lasts 30 days and allows 100 free emails per day. Requests with attachments are limited to 10 MB and 10,000 total recipients, and delivery logs are retained for seven days.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Twilio Email free trial | 30 days · 100 free emails per day | Free |
| Twilio Email pay-as-you-go | per email sent · No monthly base fee · No feature tiers · No overage charges | Free |
As twilio.com lists them, read 11 Oct 2026. The maker's own page has the final word.
Getting started
- Open the Twilio Email website
- Create a Twilio account
- Use the 30-day free trial with 100 free emails per day
- Send messages through the Email API
- Configure LiquidJS templates or scheduled delivery as needed
Verdict
Twilio Email API offers message sending, scheduling, templates and delivery-status reporting with per-email billing. Teams should account for request limits and the seven-day log-retention period.
Questions
Is Twilio Email free?
It has a 30-day free trial with 100 free emails per day. The pay-as-you-go charge is $0.0013 per email sent.
How is Twilio Email delivered?
The listed delivery method is an API. The API accepts JSON requests for transactional or marketing email.
Can messages be personalized and scheduled?
Yes. LiquidJS can personalize subject, text, and HTML fields, and emails can be scheduled up to seven days ahead.
What statuses does the API report?
It reports sent, delivered, undelivered, opened, and failed statuses.
How does Twilio Email differ from SendGrid?
Twilio says they are separate tools built on the same email infrastructure. SendGrid is its platform for high-volume transactional and marketing email.
Facts from Twilio Email API's own pages
- API use
- The Email API sends transactional and marketing emails to one or multiple recipients using a JSON request. · twilio.com, 11 Oct 2026
- Billing
- Twilio Email charges a flat $0.0013 per email sent, with no monthly base fees, feature tiers, or overage charges. · twilio.com, 11 Oct 2026
- Company history
- Twilio says it was founded in 2008 to simplify telecommunications and bring communications to the cloud. · twilio.com, 11 Oct 2026
- Developer access
- Twilio SendGrid Email API supports RESTful APIs and SMTP relay, with programming-language libraries and interactive documentation. · twilio.com, 11 Oct 2026
- Founded
- 2008 · twilio.com, 28 Sept 2026
- Headquarters
- San Francisco, California, United States · twilio.com, 28 Sept 2026
- Monitoring
- The API reports email statuses including sent, delivered, undelivered, opened, and failed. · twilio.com, 11 Oct 2026
- Personalization
- The API supports LiquidJS templating in the subject, text, and HTML fields. · twilio.com, 11 Oct 2026
- Product distinction
- Twilio says Twilio Email and Twilio SendGrid are separate tools built on the same email infrastructure; SendGrid is its platform for high-volume transactional and marketing email. · twilio.com, 11 Oct 2026
- Purpose
- Twilio Email lets teams add transactional email to applications and existing cross-channel workflows through the Twilio Console. · twilio.com, 11 Oct 2026
- Request limits
- A request including attachments is limited to 10 MB and 10,000 total recipients. · twilio.com, 11 Oct 2026
- Scheduling
- Emails can be scheduled up to seven days in advance. · twilio.com, 11 Oct 2026
- Security
- Twilio SendGrid lists SPF, DKIM, DMARC, and TLS encryption among its email security features. · twilio.com, 11 Oct 2026
- Sending and tracking
- It provides high-deliverability infrastructure to send and track transactional emails, with real-time email logs and deliverability tools. · twilio.com, 11 Oct 2026
- Support
- Twilio SendGrid says its email experts can help with setup, troubleshooting, deliverability, and open rates. · twilio.com, 11 Oct 2026
- Trial
- New users can try Twilio Email for 30 days with 100 free emails per day. · twilio.com, 11 Oct 2026
Where Twilio Email API stands on Freedom251
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