MailfullyEven Flow Solutions LLC
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SMTP SenpaiMailSenpai
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Related Products
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About
Mailfully is a hosted transactional email API for developers who need to send and receive messages from applications. Teams can send receipts, password resets, sign-in links, and alerts through a REST API or Node.js SDK, verify custom sending domains, and use reusable templates with variables. Per-message logs show delivery events, while webhooks can report deliveries, bounces, complaints, opens, and clicks to an application endpoint. Automatic suppression prevents later sends to addresses that bounce or complain. Mailfully also supports inbound email through a webhook and API, domain and message management from a command-line tool, delivery analytics, and an MCP server that lets compatible AI coding tools send messages and check their status. A test mode routes test messages to a simulator before live sending. The service is available through a free plan and paid monthly plans.
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About
SMTP Senpai is MailSenpai's EU-hosted SMTP relay and REST email API for password resets, order confirmations, notifications and website forms. Connect via SMTP on port 2525 or 587 with STARTTLS, the REST API, or a form endpoint for static sites. DKIM signing uses your verified sender domain, with SPF/DKIM/DMARC checks and automatic suppression of bounced addresses. The permanent free plan includes 5,000 emails per calendar month, up to 200 per day and 30 in the preceding hour, one verified sender domain and 7-day sending logs. No card or expiry. Paid annual plans start at EUR 12.90 per month plus VAT for 10,000 emails per month and 90-day logs. An email report is sent weekly on Monday. Official WordPress and Drupal plugins and open-source SDKs support integration. Written support is available in English and Italian. MailSenpai is the separate newsletter and email marketing platform.
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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
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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
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Audience
Developers, startups and SaaS teams that send transactional email from their apps, and teams building AI agents that need to send and receive email.
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Audience
Developers, SaaS and app makers, web agencies and small businesses that need reliable transactional email
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Supported
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API
Offers API
Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$5/month
Free plan includes 3,000 sent emails/month and 100 received emails/month at a hosted address. Starter is $5/month for 10,000 emails/month; paid-plan overage is $0.40 per 1,000 emails. Test sends do not count toward the allowance.
Free Version
Supported
Free Trial
Not Supported
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Pricing
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
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationEven Flow Solutions LLC
Founded: 2025
United States
mailfully.com
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Company InformationMailSenpai
Founded: 2016
Italy
en.mailsenpai.com/smtp-senpai/
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Alternatives |
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Categories |
Categories |
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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
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Integrations
Claude Code
Supported
Cursor
Supported
Django
Not Supported
Grok
Supported
Laravel
Not Supported
Magento
Not Supported
Model Context Protocol (MCP)
Supported
Node.js
Not Supported
PrestaShop
Not Supported
Supabase
Not Supported
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Integrations
Claude Code
Not Supported
Cursor
Not Supported
Django
Supported
Grok
Not Supported
Laravel
Supported
Magento
Supported
Model Context Protocol (MCP)
Not Supported
Node.js
Supported
PrestaShop
Supported
Supabase
Supported
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