Email Delivery service catalog

Email marketing platform providing newsletter creation, automation, and landing page tools for small businesses.

Email delivery API service for sending, receiving, and tracking emails for transactional and marketing messages.

Mandrill is a transactional email API and SMTP service from Mailchimp/Intuit, used by developers to send password resets, receipts, and notifications with delivery analytics, templates, and webhooks.

Bird AI powers 40% of global commerce email. Send email, SMS, and WhatsApp at scale with 99.3% delivery rates. Start free.

Sales engagement platform for Gmail providing email tracking, sequences, scheduling, and automation.

MXToolbox provides DNS, email deliverability, and network diagnostic tools including MX record lookups, blacklist checks, SPF/DKIM/DMARC validators, and monitoring for email administrators and IT teams.

NetEase 163.com is a Chinese internet portal operated by NetEase, providing free webmail, news aggregation, online entertainment, and consumer web services to mainland China users.

Open-source notification infrastructure providing a unified API for managing all communication channels.

Cloud communication API platform providing SMS, voice, WhatsApp, and verification APIs for enterprise messaging.

Pobox has been discontinued as a separate service, and all existing customers moved to the Fastmail platform.

Email delivery service for developers focused on fast, reliable transactional email with detailed analytics.

Proofpoint URL Defense is an email security service that rewrites URLs contained in emails, routing clicks through Proofpoint's security infrastructure to perform real-time scanning for phishing, malware, and malicious content at time of click. It provides organizations protection against targeted email attacks by checking link safety even after emails are delivered.

Encrypted email service based in Switzerland with end-to-end encryption and privacy by default.

Simple and affordable email hosting for individuals and small teams.

Email API for developers providing reliable transactional email delivery with React email template support.

Sender Score is an email sender reputation lookup operated by Validity that gives IP addresses a 0-100 score based on complaint rates, spam-trap hits, and volume to help senders diagnose deliverability.

SendGrid's trusted email API and marketing campaigns platform is now available through Twilio.com.

Multi-channel marketing automation platform for email, SMS, web push, and chatbot campaigns.

Global cloud communications platform providing SMS, voice, email, and messaging APIs for developer integration.

AI-powered cold email outreach platform with unlimited mailboxes, automated sequences, and deliverability tools.

SpamCop is a spam reporting and email blocklisting service that enables users to submit unwanted spam emails for analysis. It parses message headers to identify the originating mail server IP address, then publishes blocklists (SCBL) used by mail servers to filter incoming spam, helping ISPs and email administrators reduce spam delivery.

Subscription newsletter platform enabling writers to publish and monetize their work directly with readers.

Global cloud communications platform providing voice, messaging, and networking APIs with carrier-grade reliability.

Build amazing customer experiences on the Twilio platform with APIs for SMS, RCS, voice, and email, plus conversational AI for smarter engagement, and identity verification for trust.