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Description

Postmastery delivers a comprehensive platform for professional email monitoring that extends well beyond mere ‘click & open’ metrics. Its Delivery Analytics system analyzes SMTP delivery information from both local mail servers and SMTP service providers, incorporating data from Microsoft SNDS, Return Path Sender Score, along with various blacklists. Users are equipped with real-time dashboards and benefit from automatic notifications. Issues like high bounce rates, prolonged delivery times, landing in junk folders, or being blacklisted can severely hinder email marketing efforts and adversely affect your company's reputation. To proactively manage these challenges, Postmastery establishes a benchmark for improvement and conducts thorough email delivery evaluations. Additionally, should the situation require it, our team offers direct support at the infrastructure level. By turning to Postmastery for your delivery monitoring needs, you can concentrate on your primary business operations while leveraging our extensive email delivery expertise, tools, and resources available through our 'email delivery control centre.' This partnership ensures that your email campaigns are not just effective but also aligned with best practices in the industry.

Description

SMTP Senpai, offered by MailSenpai, serves as the SMTP relay for emails generated by your applications, websites, and tools, handling everything from sign-ups and password resets to order confirmations, notifications, and contact forms. You can connect using standard SMTP (port 2525 with STARTTLS), a REST API that provides JSON responses, or a dedicated form endpoint suitable for web forms, even on static sites. All outgoing emails are DKIM-signed using your own domain, for which we supply the necessary DNS records and verify them on your behalf. Automatically, we suppress bounced addresses, maintain a 90-day log of all sent emails, and provide you with a comprehensive weekly report. Rather than suspending your account upon exceeding a certain threshold, we issue a warning and guide you on what needs to be addressed. Our servers and data operations are based in the EU, and we offer support in both Italian and English through tickets and email. Try us out with a 14-day free trial that requires a card for registration (you can cancel anytime), and then continue with plans starting at €12.90 per month for up to 10,000 emails on an annual subscription. This service ensures reliable email delivery while offering flexibility and support for your communication needs.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Django No 
KumoMTA Yes 
Laravel No 
Magento No 
Microsoft 365 Yes 
Node.js No 
PowerMTA Yes 
PrestaShop No 
Supabase No 
WooCommerce No 
WordPress No 
n8n No 

Integrations

Django Yes 
KumoMTA No 
Laravel Yes 
Magento Yes 
Microsoft 365 No 
Node.js Yes 
PowerMTA No 
PrestaShop Yes 
Supabase Yes 
WooCommerce Yes 
WordPress Yes 
n8n Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

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 Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises Yes 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours Yes 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Postmastery

Founded

2012

Country

Netherlands

Website

www.postmastery.com

Vendor Details

Company Name

MailSenpai

Founded

2016

Country

Italy

Website

en.mailsenpai.com/smtp-senpai/

Product Features

Email Deliverability

DMARC Analytics No 
Deliverability Alerts No 
Deliverability Reporting No 
Email Address Verification No 
Email Content Testing No 
Email Previewing No 
IP Blacklist Monitoring No 
Inbox Placement Testing No 
Reputation Reporting No 

Product Features

Email Deliverability

DMARC Analytics No 
Deliverability Alerts No 
Deliverability Reporting No 
Email Address Verification No 
Email Content Testing No 
Email Previewing No 
IP Blacklist Monitoring No 
Inbox Placement Testing No 
Reputation Reporting No 

Transactional Email

SMTP Senpai facilitates the delivery of transactional emails for applications, websites, e-commerce platforms, and business applications, including sign-up confirmations, password recovery messages, order notifications, invoices, alerts, and contact form submissions. It operates over standard SMTP via port 2525, provides a REST API, or allows submissions through a form endpoint. You can configure DKIM for your domain, access a 90-day sending log, benefit from automatic suppression of bounces and complaints, and ensure that servers and data storage are located within the EU.

A/B Testing No 
Contact Database No 
Dynamic Content No 
Email Monitoring Yes 
Mailing List Management No 
Reporting/Analytics Yes 
Spam Check No 
Template Management No 

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