InboxAlly is email deliverability software that moves your messages out of spam and promotions and into the primary inbox. It builds and protects sender reputation, warms new domains and IPs automatically, verifies inbox placement across the major mailbox providers, and monitors blacklists in real time. It layers onto any ESP or SMTP setup without changing how you send. Every plan carries a REST API, a dedicated customer success manager and 24/7 live support. Used by marketers, agencies, cold outreach teams and deliverability consultants.
Learn more

ActiveCampaign is an autonomous marketing platform that revolutionizes the workflows of marketers, agencies, and entrepreneurs. The platform powers forms, landing pages, email, SMS, WhatsApp, automation, and a CRM, as well as the ability to integrate with over 1000 applications.
With Active Intelligence, it's easy to create personalized, engaging, data-driven marketing campaigns. Other platforms focus on reporting past failures; ActiveCampaign’s Active Intelligence swiftly flags potential problems and creates opportunities proactively. Predictive insights and goal-driven AI agents replace dashboards and guesswork.
Within a single tool, you get real-time reporting and proactive optimizations in addition to market-leading deliverability. That means you can act on insights faster, easily streamline processes, and drive growth for your business.
By combining a user-friendly interface with a comprehensive suite of features, the platform is powerful, accessible, and designed to scale with your business. It's easy to get started: While traditional tools force teams through long setup cycles and training, ActiveCampaign delivers measurable lifts in engagement and conversions in days. 89% of surveyed customers say the platform meets their business needs better than the competition, and 88% say ActiveCampaign delivers value faster than competitors.
Learn more
MailerSend
MailerSend is a hassle-free transactional messaging service designed so that developers can integrate transactional email and SMS quickly and effortlessly into their stack. Intuitively designed so anyone can contribute, with a powerful sending infrastructure and flexible payment plans that empower you to scale your sendings quickly. With over a decade of deliverability expertise, and inbuilt email verification, you can rest easy knowing your sender reputation will remain intact. Plus, premium features including sender identities, dedicated IPs and priority support make for an advanced, comprehensive solution. Get started for FREE with 500 emails per month, then upgrade for as little as $7/month for up to 5,000 emails! Want to try more? Get a 14-day free trial of our Professional plan and test-drive every feature it has to offer.
Learn more
SendFleet
SendFleet is an advanced transactional email API that prioritizes security and performance, tailored for developers and product teams. It features an easy-to-use REST interface that facilitates the sending of essential application notifications, password resets, and order confirmations, all while avoiding the complications often associated with traditional email delivery systems.
What sets this service apart is its innovative Bring Your Own Cloud (BYOC) approach, which empowers data-conscious developers by enabling them to send transactional emails via their own Amazon SES accounts. This ensures that all data remains private, as SendFleet does not retain any message content or recipient information, providing peace of mind for users concerned about data security. Additionally, this model allows developers to maintain control over their email infrastructure while still benefiting from SendFleet's high-performance capabilities.
Learn more