Discover the best software

Customer.io

A messaging and marketing automation platform that sends targeted, behavior-driven emails, push, and SMS at scale.

Buttondown

A minimal, privacy-friendly newsletter tool with Markdown support — simple, fast email sending without the bloat.

Resend

A developer-friendly email API for sending reliable transactional and marketing emails with great deliverability.

Knock

Notifications infrastructure as a service — send and manage product notifications across email, push, in-app and more.

SendGrid

A trusted email platform for sending transactional and marketing email at scale, with strong deliverability and APIs.

Rytr

An affordable, easy AI writing assistant for generating blog content, emails, and copy in seconds.

beehiiv

A newsletter platform built for growth and revenue, with referral tools, ads, and analytics baked in.

Front

A shared inbox platform that lets teams manage customer email and messages together, personally and efficiently.

Postmark

A transactional email service obsessed with fast, reliable delivery to the inbox — built for developers.

Breakcold

A sales CRM built for social selling — engage prospects on LinkedIn and email from one pipeline-focused workspace.

Lindy

Build no-code AI agents that handle your email, scheduling, lead outreach and workflows — your own AI assistants.

ActiveCampaign

Powerful marketing automation and CRM that turns customer behavior into personalized campaigns.

Smartlead

A cold email platform built for scale — unlimited mailboxes, automated warmup and strong deliverability for outbound.

Constant Contact

Easy, reliable email marketing for small businesses and nonprofits, with strong support and templates.

Findymail

An email finder and verifier focused on accuracy and deliverability — get valid B2B emails that won't bounce.

Reply.io

A multichannel sales engagement platform that automates outreach across email, LinkedIn and calls with AI.

Hunter

Find and verify professional email addresses to reach the right people for sales, outreach, and link building.

Woodpecker

A reliable cold email tool focused on deliverability and human-like sending — popular with agencies and B2B teams.

MailerLite

Clean, simple email marketing with real automation and a generous free plan — loved by small businesses.