OFFICIAL REFERENCES

Straight to the source.

Documentation, pricing and status references for 15 email services.

Documentation and source review · September 8, 2026
Service	Website	Documentation	Pricing	Status
Resend	Open ↗	Open ↗	Open ↗	Open ↗
Postmark	Open ↗	Open ↗	Open ↗	Open ↗
Mailgun	Open ↗	Open ↗	Open ↗	Open ↗
Amazon SES	Open ↗	Open ↗	Open ↗	Open ↗
Twilio SendGrid	Open ↗	Open ↗	Open ↗	Open ↗
Brevo	Open ↗	Open ↗	Open ↗	Open ↗
MailerSend	Open ↗	Open ↗	Open ↗	Open ↗
SMTP2GO	Open ↗	Open ↗	Open ↗	Open ↗
Mailjet	Open ↗	Open ↗	Open ↗	Open ↗
Elastic Email	Open ↗	Open ↗	Open ↗	Open ↗
Zoho ZeptoMail	Open ↗	Open ↗	Open ↗	Not confirmed in this review
Plunk Cloud	Open ↗	Open ↗	Open ↗	Open ↗
Azure Communication Services Email	Open ↗	Open ↗	Open ↗	Open ↗
Alibaba Cloud DirectMail	Open ↗	Open ↗	Open ↗	Open ↗
Tencent Cloud SES	Open ↗	Open ↗	Open ↗	Open ↗