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Twilio offers developers a powerful API for phone services to make and receive phone calls, and send and receive text messages. Their product allows programmers to more easily integrate various communication methods into their software and programs. | We offer one platform that covers all email-related needs in one place: testing, sending, and in-depth tracking to control how email infrastructure works and performs. |
Phone- Phone Numbers API;Phone- Convert Text to Speech and Play Audio;Phone- Record Calls and Store Them;Phone- Create Conferences;Phone- API Queueing;Phone- Call Queues;Phone- Convert Speech to Text;Phone- Usage API;Phone- Status Callbacks and Logs;Phone- Global Reach;SMS- Supports Unicode;SMS- Message Queueing;SMS- Realtime API;SMS- Global Reach;SMS- Status Callbacks and Logs;SMS- Usage metering & API triggers;SMS- Voice Enabled Numbers;SMS- Short Codes;Two-factor authentication;Call tracking;Voice broadcasting;Cloud IVR;Mobile app distribution | Automated Testing; HTML/CSS Check; Spam Analysis; Deliverability Alerts; Email Categories; Knowledge Base; Support System; HTML/RAW Preview; Tracking Settings; Statistics Overview; Suppression List; Email Logs; Webhooks; Inboxes; Projects |
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Stacks 11.5K | Stacks 130 |
Followers 8.8K | Followers 127 |
Votes 521 | Votes 10 |
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Mandrill is a new way for apps to send transactional email. It runs on the delivery infrastructure that powers MailChimp.

Twilio SendGrid's cloud-based email infrastructure relieves businesses of the cost and complexity of maintaining custom email systems. Twilio SendGrid provides reliable delivery, scalability & real-time analytics along with flexible API's.
Mailgun is a set of powerful APIs that allow you to send, receive, track and store email effortlessly.

Amazon SES eliminates the complexity and expense of building an in-house email solution or licensing, installing, and operating a third-party email service. The service integrates with other AWS services, making it easy to send emails from applications being hosted on services such as Amazon EC2.

Send email from your app with a simple API call, Sendwithus manages the rest. Templates, testing, data management, segments, and analytics are all accessible through a friendly dashboard.

Nexmo connects your apps directly to carriers around the world. Integrate SMS and Voice messages using one simple API. Use Nexmo Verity to register users, verify transactions, and implement two factor authentication.

Postmark removes the headaches of delivering and parsing email for webapps with minimal setup time and zero maintenance.

Litmus is a testing service for web and marketing professionals. It allows people to cross-browser test their websites, and test their email newsletters across a range of email clients and spam filters.

Plivo provides basic building block APIs in the form of Plivo XML and HTTP API, to create telephony apps, so developers can completely do away with learning the nitty-gritty of the telephony plumbing.

Email on Acid is the most affordable, self-serve email testing platform in the world. We can help you maximize the success of your email marketing efforts by diagnosing and improving your renderability, deliverability, click-throughs and conversions.