Average Ratings 4 Ratings
Average Ratings 2 Ratings
Description
KumoMTA is an open source mail transfer agent and email infrastructure platform for enterprises, MailOps teams, and high-volume senders. The platform is built to provide the control, scalability, transparency, and continuity that organizations need when email delivery is central to their business. KumoMTA is positioned as an alternative to commercially licensed MTA providers that may create pricing shocks, renewal risk, vendor dependency, or black-box infrastructure limitations. The platform can deliver tens of millions of messages per hour on a single instance and is designed to support large-scale sending without data loss. Its open source model gives teams direct access to the code and more authority over deployment, operations, and long-term infrastructure decisions. KumoMTA also emphasizes performance, resilience, cost predictability, fairness, and transparent stewardship. The community includes developers, security researchers, and enterprises that help audit code, identify vulnerabilities, and improve the platform over time. KumoMTA provides extensive documentation, a community forum, GitHub repository, migration resources, and support options for teams moving from other MTA platforms. By combining open source email infrastructure, high-volume performance, operational control, community development, documentation, and enterprise support, KumoMTA helps organizations invest in their own email infrastructure with greater confidence.
Description
Reliable SMTP relay services and email delivery services. You can send and track large volumes of emails with ease using powerful email delivery services. In minutes, integrate and you can start sending. All your email delivery, transactional and email relay needs are covered under one roof. SMTP can deliver whether you need a reliable backend solution or scalable infrastructure to handle large volumes of emails. Reputation Defender, SMTP's proprietary technology, uses big data to proactively monitor and protect your email list health. It also suppresses bad emails from soft and hard bounces in order to protect your IP reputation and domain. This will ensure that your delivery rates and inbox placement gradually improve over time.
API Access
Has API
Yes
API Access
Has API
Yes
Integrations
Airtable
No
Axis LMS
No
Crelate
No
DeliverySuite
No
Gammadyne Mailer
No
Gmail
No
Google Calendar
No
Google Docs
No
Google Forms
No
IntelliClick
No
Integrations
Airtable
Yes
Axis LMS
Yes
Crelate
Yes
DeliverySuite
Yes
Gammadyne Mailer
Yes
Gmail
Yes
Google Calendar
Yes
Google Docs
Yes
Google Forms
Yes
IntelliClick
Yes
Pricing Details
$0
KumoMTA is Open-Source and free to use, those interested in support and services can contact us.
Free Trial
Yes
Free Version
Yes
Pricing Details
$25 per month
$25 for 50,000 emails / mo
$80 for 100,000 emails / mo
$300 for 500,000 emails / mo
$500 for 1,000,000 emails / mo
24hr support with all plans!
$80 for 100,000 emails / mo
$300 for 500,000 emails / mo
$500 for 1,000,000 emails / mo
24hr support with all plans!
Free Trial
No
Free Version
No
Deployment
Web-Based
Yes
On-Premises
Yes
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
Yes
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
Yes
iPad App
Yes
Android App
Yes
Windows
Yes
Mac
Yes
Linux
Yes
Chromebook
Yes
Customer Support
Business Hours
Yes
Live Rep (24/7)
Yes
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
Yes
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
Yes
Live Training (Online)
Yes
In Person
Yes
Types of Training
Training Docs
Yes
Webinars
Yes
Live Training (Online)
Yes
In Person
No
Vendor Details
Company Name
Kumo Corp
Founded
2023
Country
United States
Website
kumomta.com
Vendor Details
Company Name
Ziff Davis
Founded
1995
Country
United States
Website
www.smtp.com
Product Features
Email Management
Data Recovery
No
Email Archiving
Yes
Email Deletion
No
Email Discovery
No
Email Monitoring
Yes
Email Recall
No
Queue Manager
Yes
Response Management
No
Routing
Yes
Shared Inboxes
No
Signature Management
No
Spam Blocker
No
Whitelisting / Blacklisting
Yes
Product Features
Email Deliverability
DMARC Analytics
Yes
Deliverability Alerts
Yes
Deliverability Reporting
Yes
Email Address Verification
Yes
Email Content Testing
Yes
Email Previewing
Yes
IP Blacklist Monitoring
Yes
Inbox Placement Testing
Yes
Reputation Reporting
Yes
Email Verification
Bulk Email Verification
Yes
Catch-all Server Detection
Yes
Disposable Email Detection
Yes
Domain Check
Yes
Mail Server Validation
Yes
Single Email Verification
Yes
Spam Trap Detection
Yes
Syntax Check
Yes
Transactional Email
A/B Testing
Yes
Contact Database
Yes
Dynamic Content
Yes
Email Monitoring
Yes
Mailing List Management
Yes
Reporting/Analytics
Yes
Spam Check
Yes
Template Management
Yes