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What is SMTP Senpai?

MailSenpai's SMTP Senpai acts as a reliable SMTP relay for all your email needs, including sign-ups, password resets, order confirmations, notifications, and contact forms generated by your applications, websites, and tools. You can easily connect using standard SMTP on port 2525 or 587 with STARTTLS, a REST API that delivers JSON responses, or a specialized form endpoint that works seamlessly with web forms, even on static websites. All outgoing emails are authenticated with DKIM using your domain, and we provide the necessary DNS records while verifying them for you. We automatically manage bounced addresses, keep a comprehensive 90-day log of all sent emails, and deliver an in-depth weekly report for your records. Instead of suspending your account when you exceed a specific limit, we offer warnings and guidance on how to address any issues that arise. Our operations and servers are located in the EU, and we provide customer support in both Italian and English through ticketing and email systems. You can explore our offerings with a 14-day free trial that requires a credit card for registration (cancellation is available at any time), and after the trial, you can choose a subscription plan starting at €12.90 per month for up to 10,000 emails annually. With this service, you can enjoy dependable email delivery while benefiting from the flexibility and support tailored to enhance your communication requirements. Additionally, our commitment to data security and compliance further strengthens our service's reliability.

What is Resend?

Resend is a developer-focused email delivery and marketing platform that provides APIs, infrastructure, and workflow tools for managing transactional and promotional email communications. The platform enables applications to send messages through a REST API, SMTP, and software development kits for multiple programming languages and frameworks. Its transactional email capabilities support account verification, password resets, purchase receipts, onboarding messages, notifications, and other automated communications. Developers can send individual messages, process batches, schedule future deliveries, and include file attachments through supported API endpoints. Resend integrates with React Email, an open-source component library that enables developers to create and maintain email templates using React and reusable interface components. The platform also provides a visual editor for designing newsletters, announcements, and marketing messages without requiring custom HTML development. Its Broadcasts functionality allows organizations to create email campaigns, select recipient audiences, schedule distribution, and measure engagement. Contact management features support importing subscribers, organizing audiences, maintaining contact attributes, and managing subscription preferences. Email observability tools include detailed API logs, delivery status tracking, open and click analytics, bounce reporting, and webhook notifications for events involving messages, contacts, and domains. Resend provides domain authentication, deliverability monitoring, blocklist tracking, dedicated IP addresses, and testing tools to help organizations manage email infrastructure and troubleshoot delivery issues. Additional features include inbound email processing, automated communication workflows, and integrations with development frameworks and external applications for managing email throughout the application lifecycle.

Media

Media

Integrations Supported

Node.js
Magento

Integrations Supported

Node.js
Brainpercent
ElectroNeek
Embeddable
Glamly
Leado
Mazaal AI
Nitrosend
Nucla
OutcomeWatch
Roomote
SaaSBold
Supastarter
Tokei
ToolSDK.ai
Velt
Webleadr
eventcloud
next-forge

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Permanent free plan: 5,000 emails per calendar month, up to 200 per day and 30 in the preceding hour; one verified sender domain; 7-day sending logs; no card or expiry. Paid annual plans start at EUR 12.90/month plus VAT for 10,000 emails/month, with 90-day sending logs. The free plan does not automatically become a paid subscription.
Free Version

Pricing Information

$20 per month
Free Version

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

MailSenpai

Date Founded

2016

Company Location

Italy

Company Website

en.mailsenpai.com/smtp-senpai/

Company Facts

Organization Name

Resend

Date Founded

2023

Company Location

United States

Company Website

resend.com

Categories and Features

Email APIs

Not specified

Email Deliverability

Not specified

SMTP

Not specified

Transactional Email

SMTP Senpai facilitates the delivery of transactional emails for applications, websites, e-commerce platforms, and business applications. This includes communications such as registration confirmations, password recovery messages, order confirmations, invoices, alerts, and inquiries via standard SMTP on ports 2525 or 587, as well as through a REST API or form endpoint. The service includes DKIM authentication using your own domain, a 90-day email activity log, automatic handling of bounces and complaints, and ensures that all servers and data storage are located within the EU.

Email Monitoring
Reporting/Analytics

Categories and Features

Email APIs

Not specified

Transactional Email

Not specified

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