Resend vs. SMTP Senpai Comparison


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About We are a team of engineers who love building tools for other engineers. Our goal is to create the email platform we've always wished we had — one that just works. Receive real-time notifications directly to your server. Every time an email is delivered, opened, bounces or a link is clicked. Simulate events and experiment with our API without the risk of accidentally sending real emails to real people. Simulate events and experiment with our API without the risk of accidentally sending real emails to real people. Rely on a platform of reputable IPs used by trustworthy senders with distributed workloads across different IP pools. Get a fully managed dedicated IP that automatically warms up and autoscales based on your sending volume, with no waiting period. Get a fully managed dedicated IP that automatically warms up and autoscales based on your sending volume, with no waiting period.	About SMTP Senpai is the SMTP relay by MailSenpai for the emails your apps, websites and tools send: sign-ups, password resets, order confirmations, notifications and contact forms. Connect it via standard SMTP (port 2525, STARTTLS), a REST API with JSON responses, or a form endpoint for website forms, including static sites. Emails are signed with DKIM on your own domain: we provide the DNS records and check them for you. Bounced addresses are suppressed automatically, every email stays in a 90-day sending log and you get a monthly report. We don't suspend your account because a threshold was exceeded: you get a warning and we tell you what to fix. Servers and data in the EU. Human support in Italian and English, by ticket and email. 14-day trial at €0 (card required, cancel anytime), then from €12.90/month for 10,000 emails on the annual plan.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Developers looking for an Email API solution	Audience Developers, SaaS and app makers, web agencies and small businesses that need reliable transactional email
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $20 per month Free Version Supported Free Trial Not Supported	Pricing €12.90/month Prices in euro, VAT excluded. 14-day free trial: 0 EUR today, card required, up to 100 emails a day. Annual plan: 10,000 emails/month at 12.90 EUR/month; 20,000 at 22.90; 50,000 at 35.02; 100,000 at 43.10. 3-month plan: 10,000 emails at 25.80 EUR/month. Extra blocks of 1,000 emails with a spending cap you set. Dedicated IP from 15 EUR/month (included from 150,000 emails a month). Free Version Not Supported Free Trial Supported
Reviews/Ratings Overall 4.0 / 5 ease 5.0 / 5 features 5.0 / 5 design 4.0 / 5 support 4.0 / 5 Read all reviews	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software
Pros & Cons from Real Users Pros Having the ability to send transactional emails via API makes integrating Resend into an application significantly easier. We set up Resend to handle key transactional emails such as verifying accounts, sending forgot password emails and notifications about usage in our customer accounts. It was easy for our developers to integrate and the pricing scales nicely. Cons To be honest as long as you know that Resend is designed for transactional emails, and not marketing emails, there's no major negatives of the platform itself. I would have given it 5 stars, but the jump in pricing to have 7 day data retention is higher than I would have liked.
Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information Resend Founded: 2023 United States resend.com	Company Information MailSenpai Founded: 2016 Italy en.mailsenpai.com/smtp-senpai/
Alternatives BlueFox Email Innovaris Group	Alternatives SMTP.com Ziff Davis
Mailofly	turboSMTP
Mailtrap Railsware	Maileroo
Maileroo	SendGrid Twilio SendGrid
Mailchimp Transactional Email (Mandrill) Mailchimp View All	Netcore Email API Netcore View All
Categories Email APIs Supported Transactional Email Supported	Categories Email APIs Supported Email Deliverability Supported SMTP Supported Transactional Email Supported SMTP Senpai sends the transactional emails of apps, websites, online stores and business software (sign-ups, password resets, orders, invoices, notifications, contact forms) through standard SMTP on port 2525, a REST API or a form endpoint. DKIM on your own domain, 90-day sending log, automatic suppression of bounces and complaints, servers and data in the EU.
	Transactional Email Features A/B Testing Not Supported Contact Database Not Supported Dynamic Content Not Supported Email Monitoring Supported Mailing List Management Not Supported Reporting/Analytics Supported Spam Check Not Supported Template Management Not Supported
Integrations Node.js Supported Arzule Supported Brikone Supported Codepilot Supported Embeddable Supported Glamly Supported Laravel Not Supported LaunchFast Supported Leo Supported Marina Mate Pro Supported MigmaAI Supported PeerQuik Supported RankOrg Supported SaaSy Land Supported ShipAppsFast Supported ToolSDK.ai Supported UnderPeaks Supported Webdone Supported WooCommerce Not Supported WordPress Not Supported Show More Integrations View All 64 Integrations	Integrations Node.js Supported Arzule Not Supported Brikone Not Supported Codepilot Not Supported Embeddable Not Supported Glamly Not Supported Laravel Supported LaunchFast Not Supported Leo Not Supported Marina Mate Pro Not Supported MigmaAI Not Supported PeerQuik Not Supported RankOrg Not Supported SaaSy Land Not Supported ShipAppsFast Not Supported ToolSDK.ai Not Supported UnderPeaks Not Supported Webdone Not Supported WooCommerce Supported WordPress Supported Show More Integrations View All 9 Integrations
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