SMTP Senpai

SMTP Senpai

MailSenpai
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About

Mailofly is a complete email infrastructure platform built for developers, SaaS companies, startups, and modern applications. Send and manage emails through a powerful REST API or SMTP without the complexity of building and maintaining your own email infrastructure. Mailofly supports transactional emails, marketing campaigns, email templates, delivery tracking, detailed logs, webhooks, inbound email routing, domain management, and audience management. Developers can easily integrate Mailofly into their applications and receive real-time delivery events through webhooks. With support for popular development environments and a developer-friendly workflow, Mailofly makes it simple to send, receive, monitor, and scale email from a single platform.

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 weekly 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

SaaS companies, startups, developers, development agencies, AI applications, e-commerce platforms, and businesses that need reliable transactional or marketing email infrastructure.

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 Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$20/month
Free Version Supported
Free Trial Not Supported

Pricing

€12.90/month
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 4.7 / 5

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:

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Pros & Cons from Real Users

Pros

  • * Easy-to-use dashboard with a clean and simple interface. * Smooth API integration, especially for developers. * Helpful email tracking and delivery logs. * Domain verification makes email setup more organized. * Multiple mailboxes available in one platform. * Makes it easier to monitor email activity and troubleshoot delivery issues. * Useful features without unnecessary complexity.
  • I use Mailofly while working on the product, mainly to test email sending and check delivery activity. The API is straightforward to work with, and I like being able to see email events in the dashboard when I need to troubleshoot something.
  • Supports both API and SMTP integration, giving developers flexibility when integrating email into their applications. Simplifies email integration for SaaS products, web applications, and backend services. Useful for transactional emails such as OTPs, password resets, account verification, and application notifications. Developer-friendly approach with SDK-based integration. Provides email delivery logs, tracking, webhook support, and bounce handling to help monitor email operations. Helps reduce the complexity of managing email infrastructure independently. Suitable for startups, SaaS companies, and development teams looking for centralized email management.

Cons

  • * Some features could be more intuitive for first-time users. * Initial domain configuration may require basic technical knowledge. * Occasional improvements in error messages would make troubleshooting easier.
  • It’s still a relatively new product. I’d like to see more integrations and a smoother experience in a few parts of the setup flow.
  • As a growing platform, it may have a smaller community and fewer third-party tutorials than more established email service providers. Developers migrating from another provider may need to update their existing integrations and test their email workflows . New users may need some initial setup time to configure DNS records and authenticate their sending domains.

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

Mailofly
Founded: 2026
India
www.mailofly.com

Company Information

MailSenpai
Founded: 2016
Italy
www.mailsenpai.com/smtp-senpai/

Alternatives

Sweego

Sweego

Mindbaz

Alternatives

SMTP.com

SMTP.com

Ziff Davis
SMTP.com

SMTP.com

Ziff Davis
Postmark

Postmark

ActiveCampaign

Categories

Email APIs Supported

Categories

Transactional Email Features

A/B Testing Supported
Contact Database Supported
Dynamic Content Supported
Email Monitoring Supported
Mailing List Management Supported
Reporting/Analytics Supported
Spam Check Supported
Template Management Supported

Integrations

Supabase Supported
n8n Supported

Integrations

Supabase Not Supported
n8n Not Supported
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