Email/Outreach Directory

April 2026

• Amazon SES
  Tool

  Amazon SES

  AWS cloud email service for sending transactional and marketing messages via API or SMTP at pay-per-use pricing.

  Email/OutreachInfrastructureemailsmtp

  Apr 30, 2026—
• Cloudflare Email Routing
  Tool

  Cloudflare Email Routing

  Free email routing service that forwards custom domain addresses to any inbox with optional Workers processing.

  Email/OutreachInfrastructureemailsmtp

  Apr 30, 2026—
• Inboxy
  Tool

  Inboxy

  Email warmup service that uses AI and a private inbox network to boost domain reputation and deliverability.

  Email/Outreachemailwarmupdeliverability

  Apr 30, 2026—
• Instantly
  Tool

  Instantly

  Cold email and outreach platform with built-in email warmup and AI-powered campaign automation.

  Email/Outreachemailwarmupoutreach

  Apr 30, 2026—
• IPWarmup
  Tool

  IPWarmup

  Provides pre-warmed SMTP servers with established sender reputation so campaigns can start at full volume.

  Email/OutreachInfrastructureemailwarmupdeliverability

  Apr 30, 2026—
• MailReef
  Tool

  MailReef

  Dedicated cold email sending infrastructure with private SMTP servers, dedicated IPs, and unlimited mailboxes.

  Email/OutreachInfrastructureemailoutreach

  Apr 30, 2026—
• Reply.io
  Tool

  Reply.io

  Multichannel sales engagement platform that automates outreach across email, LinkedIn, SMS, and calls.

  Email/Outreachemailoutreach

  Apr 30, 2026—
• Resend
  Tool

  Resend

  Developer-first email API for sending transactional and marketing email, with multi-language SDKs, a CLI, and React Email templating.

  Email/OutreachDev Toolsemailsmtp

  Apr 30, 2026—
• Smartlead
  Tool

  Smartlead

  Cold email platform with unlimited mailbox warmup, AI-driven sending patterns, and deliverability monitoring.

  Email/Outreachemailwarmupoutreachdeliverability

  Apr 30, 2026—
• Verifalia
  Tool

  Verifalia

  Email validation service that identifies invalid and undeliverable addresses to reduce bounce rates and protect sender reputation.

  Email/Outreachemaildeliverability

  Apr 30, 2026—