https://sendgrid.com/
Send at scale with SendGrid’s trusted email API and marketing campaigns platform, delivering 148+ billion emails for senders like you every month.
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https://www.campaigner.com/features/rest-api/
Jun 20, 2025 - Integrate Campaigner in minutes with our powerful REST API. Automate emails, sync data, and scale workflows with ease.
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https://www.twilio.com/en-us/products/email-api
Integrate and deliver in minutes with our RESTful Email APIs and SMTP libraries. Start sending with our free EMAIL API today.
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https://www.piloterr.com/library/email-catchall
Ensure that the email addresses to which you are sending emails are not catch-all addresses. Use Email Catchall API for free!
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https://www.brevo.com/features/email-api/
Deliver on time every time with Brevo's email API
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https://inbound.new/
Complete email infrastructure for modern applications. Send transactional emails, receive inbound messages, and build AI email agents with our TypeScript SDK...
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https://www.dolist.com/offre-technologies-services-email-sms/
Plateforme email/sms pour marketing et transactionnel, email builder optimisé délivrabilité, API pour intégrer nos solutions à vos outils, services...
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https://www.twilio.com/en-us/products/email-api/pricing
Sign up to send transactional and marketing email. All of our plans are backed by our industry-leading deliverability, reliability, and support.
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https://www.smtp.com/email-api/
Jul 4, 2025 - Power secure, high-speed delivery with our robust, RESTful SMTP Email API. Easy to integrate with reliable infrastructure. Start sending emails today!
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https://www.mailersend.com/features/email-api
Integrate in minutes with our powerful RESTful email API and official libraries. Node.js, PHP, Laravel, Python, Ruby, Go and Java SDK's. Start for free now!
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https://mailtrap.io/pl/email-sending/
Niezawodna i bezproblemowa wysyłka e-maili. Wysoka dostarczalność i zerowa obsługa techniczna. Zarejestruj się już dziś – za darmo!
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https://www.twilio.com/en-us/products/email-api
Integrate and deliver in minutes with our RESTful Email APIs and SMTP libraries. Start sending with our free EMAIL API today.
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https://dadata.ru/api/clean/email/
Проверяет корректность email и выделяет одноразовые адреса.
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https://elasticemail.com/
Nov 13, 2025 - Elastic Email is an email communication platform offering email marketing service, email API, and tools for team and customer communication, all in one place.
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https://maileroo.com/?r=openalternative&utm_source=openalternative.co
Boost email delivery and engagement with Maileroo. Enjoy advanced analytics, dedicated IPs, and seamless integration for fast and reliable email campaigns.
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https://emailengine.app/
Streamline email integration for your app or service with a unified REST API that seamlessly connects with IMAP, SMTP, Gmail API, and Microsoft Graph API
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https://forwardemail.net/en/blog/docs/complete-email-api-imap-carddav-caldav-rest-endpoints
First complete REST API for email management. 20 endpoints for contacts, calendars, messages & folders. No IMAP complexity, simple authentication.
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https://blog.dopplerrelay.com/
Feb 17, 2017 - En el blog de Doppler Relay encontrarás las mejores prácticas y consejos para mejorar tu estrategia de Email Transaccional y la entregabilidad de tus envíos.
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https://www.mailgun.com/blog/deliverability/hard-bounces-brick-walls-failure/
Oct 8, 2025 - Hard bounces are just a few of the smaller components that makeup more complex deliverability issues, but there is a simple solution for them. Read more...
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https://campaign.dolist.com/api-email-sms/
Concevez et adressez vos campagnes Emails & SMS directement depuis vos propres outils (CRM, plateforme e-commerce, solution métier…) en intégrant les...
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https://www.twilio.com/en-us/products/email-api/pricing
Sign up to send transactional and marketing email. All of our plans are backed by our industry-leading deliverability, reliability, and support.
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https://bird.com/en-us/developer/email-api?ref=emailresourc.es&sp=true
Send and optimize your emails with the platform trusted to deliver 40% of all commercial emails worldwide.
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https://mailtrap.io/email-api/
Integrate in minutes with Mailtrap’s flexible RESTful Email API: high deliverability, SDKs for Node.js, Python, PHP, Java, Ruby, and Go, 24/7 expert support.
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https://www.smtp.com/solutions/
Jul 4, 2025 - SMTP’s secure, scalable email delivery suite includes relay, API, and managed solutions. Power your sends with reliability. Get started now!
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https://sinch.com/products/email/
Jan 7, 2025 - Transform your email program with tools & APIs trusted by brands you love - check out Mailgun, Mailjet, & Email on Acid by Sinch today!
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https://www.proofpoint.com/us/resources/e-books/proofpoint-top-choice-augmenting-microsoft-365-email-security-via-api
Explore 5 reasons Proofpoint is a leading choice for augmenting Microsoft 365 email security via API. Download the eBook to learn more.
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https://postmarkapp.com/?utm_source=mastodon&utm_medium=referral&utm_campaign=2023_mastodon-sponsorship
Send transactional and marketing emails and get them to the inbox on time, every time. Postmark is a fast and reliable email delivery service for developers.
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https://code.tutsplus.com/python-send-email-api--cms-108845t
In this tutorial, you’ll learn the step-by-step process of sending emails in Python using the API method.
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https://www.usebouncer.com/the-power-of-email-validation-api/
Jul 9, 2025 - Find out how powerful email validation API can be, and how beneficial it can be for your company. Read about the possible usecases here!
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https://www.mailercheck.com/features/real-time-api-verification
Keep your email lists sparkling clean the moment you collect new email addresses. Verify your emails in real-time. Save your money and time. Try now!
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https://bird.com/en-us/developer/email-api?sp=true
Send and optimize your emails with the platform trusted to deliver 40% of all commercial emails worldwide.
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https://www.smtp.com/resources/api-documentation/
Jul 4, 2025 - Access SMTP’s robust RESTful email API docs. Start integrating fast with full JSON support, secure keys & flexible auth. Send emails in minutes!
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https://postmarkapp.com/email-api
Easy integration, reliable delivery, great documentation: integrate with the email API that developers love and start sending in minutes.
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https://www.nylas.com/products/email-api/?ref=emailresourc.es
Oct 17, 2025 - Discover Nylas Email API for fast, secure email integration. Connect to any inbox in minutes. Build for free today!
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https://www.zerobounce.net/apis/email-validation-api
ZeroBounce offers a real-time email validation API for seamless integration to ensure email list cleanliness and improve deliverability.
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https://www.esendex.es/api/email-api/
Sep 29, 2025 - Aumenta tu tasa de apertura con nuestra Email API. Fácil, escalable y segura. Todo lo que necesitas para integrar tu CRM con nuestra API.
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https://www.mailgun.com/
Sep 11, 2025 - Powerful Transactional Email APIs that enable you to send, receive, and track emails, built with developers in mind. Learn more today!
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https://www.mailgun.com/blog/email/email-accessibility-mistakes/
Oct 21, 2025 - Sometimes ensuring we're following email accessibility best practices is not easy. Here are some common email accessibility mistakes and how to fix them.
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https://www.mailjet.com/
Feb 19, 2026 - Design, deliver, and automate marketing & transactional emails together with built-in deliverability, GDPR compliance, and developer-ready email APIs
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https://unione.io/en/
UniOne is a transactional email service: you can send Transactional Emails simple and cheap with the help of platform API Email UniOne.
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https://elementor.com/es/site-mailer/
Aug 15, 2025 - Mantén tus correos electrónicos fuera del spam con Site Mailer-no necesitas un plugin SMTP. Garantice una alta capacidad de entrega y registros de email...
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https://www.smtp.com/?utm_source=Blog&%3Butm_medium=native&%3Butm_campaign=features
Jul 17, 2025 - Boost inbox delivery with SMTP’s trusted email relay and API. Scalable, secure, and backed by 20+ years of expertise. Start sending emails today!
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https://www.mailboxvalidator.com/
MailboxValidator email validation clean email lists and reduces bounce. It connects to the mail server and checks whether the mailbox exists or not.
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https://gatewayapi.com/email-api/
Oct 28, 2025 - Get access to our email API that offers high operational stability, full GDPR compliance and scalability. Learn more >>
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https://www.igpt.ai/
Transform unstructured email threads into structured, reasoning-ready intelligence. Power smarter automations, insights, and workflows with one API call.
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https://www.zerobounce.net/solutions/developers
Discover ZeroBounce's email validation API for developers. 99.6% accurate API for automating email verification in applications. Available in 13+...
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https://mailtrap.io/automated-email-testing/
Cover your code with tests and validate if emails are sent. Test multiple variables at a time and integrate Mailtrap API with your CI.
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https://postmarkapp.com/email-api
Easy integration, reliable delivery, great documentation: integrate with the email API that developers love and start sending in minutes.
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