SMTP SenpaiMailSenpai
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Related Products
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InboxGreen:
About
InboxGreen is a free email deliverability checker that tests SPF, DKIM and DMARC records for any domain instantly, no account required. It shows exactly which DNS records pass, fail, or are missing, and explains what each result means for inbox placement.
The platform includes 28 free DNS tools: DMARC analyzer, DMARC policy tester, SPF generator, SPF tester, DKIM generator, DKIM checker, DKIM selector finder, blacklist checker, email header analyzer, MX lookup, TXT lookup, WHOIS lookup, reverse DNS, DNS propagation checker, SMTP port checker, IP address info, and more.
For teams that need to fix issues, the FixKit provides step-by-step DNS fix instructions for every problem found. The Monitoring plan watches up to 5 domains and sends alerts the moment SPF, DKIM or DMARC breaks. The Agency plan covers up to 30 domains with white-label PDF reports.
Built for developers, marketers, and anyone who sends email and needs it to actually reach the inbox.
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SMTP Senpai:
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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InboxGreen:
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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SMTP Senpai:
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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InboxGreen:
Audience
Developers, email marketers, SaaS companies, digital agencies, IT administrators, and small business owners who send email and need to verify their DNS authentication records are correctly configured.
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SMTP Senpai:
Audience
Developers, SaaS and app makers, web agencies and small businesses that need reliable transactional email
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InboxGreen:
Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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SMTP Senpai:
Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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InboxGreen:
API
Offers API
Not Supported
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SMTP Senpai:
API
Offers API
Supported
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InboxGreen:
Screenshots and VideosNo images available
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SMTP Senpai:
Screenshots and Videos |
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InboxGreen:
Pricing
$19
Free Version
Supported
Free Trial
Not Supported
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SMTP Senpai:
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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InboxGreen:
Reviews/
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SMTP Senpai:
Reviews/
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InboxGreen:
Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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SMTP Senpai:
Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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InboxGreen:
Company InformationInboxGreen
Founded: 2025
Sweden
inboxgreen.email
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SMTP Senpai:
Company InformationMailSenpai
Founded: 2016
Italy
en.mailsenpai.com/smtp-senpai/
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InboxGreen:
Alternatives |
SMTP Senpai:
Alternatives |
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SMTP Senpai:
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InboxGreen:
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SMTP Senpai:
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InboxGreen:
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SMTP Senpai: | |||||
InboxGreen:
Categories |
SMTP Senpai:
Categories |
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SMTP Senpai:
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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InboxGreen:
Integrations
Django
Not Supported
Laravel
Not Supported
Magento
Not Supported
Node.js
Not Supported
PrestaShop
Not Supported
Supabase
Not Supported
WooCommerce
Not Supported
WordPress
Not Supported
n8n
Not Supported
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SMTP Senpai:
Integrations
Django
Supported
Laravel
Supported
Magento
Supported
Node.js
Supported
PrestaShop
Supported
Supabase
Supported
WooCommerce
Supported
WordPress
Supported
n8n
Supported
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InboxGreen:
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SMTP Senpai:
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