Apps similar to Resend.com include Mailchimp, which has a free version. Other options are HubSpot, Listmonk, Brevo and GetResponse. You're spoiled for choice with Email Marketing Services like Resend.com: we list more than 50 alternatives for the web, self-hosting, iPhone, Android and Linux.
AgentiSend is a transactional email API for AI agents: send receipts, password resets, sign-in codes and alerts from your own verified domain, with a message log, spend budgets, a free preflight and refusals that name the fix.
Reloop gives you the same capabilities as SendGrid, Mailchimp, Resend, and Loops — but the codebase is open source and fully self-hostable.
India
Sweego is an email and SMS sending platform for developers and builders. Send your message in minutes and monitor it easily.
Mailhooks makes it simple to receive inbound email in your app. Point your domain's MX records at us and every incoming message gets parsed and forwarded to your endpoint as a structured webhook.
United Kingdom
Postfleet is an inbound email infrastructure for AI agents. It operates on the premise that any message could potentially be an attack.
United States
The email automation your AI runs: mailboxes, transactional email and marketing automation that ChatGPT or Claude operate through MCP and a REST API.
Koneksi is a LinkedIn cold outreach wizard, offering highly-engaging, personalized messages that boost engagement rates significantly. Their AI crafts well-researched, credible, and meaningful outreach messages, aiming to attract hundreds of potential contacts with a single...
ZeptoMail is a transactional email service. Transactional emails are important emails sent from your business. It acknowledges a transaction between you and your customers, like, OTP emails, order confirmation emails, password reset emails etc.
India
