Average Ratings 0 Ratings
Average Ratings 0 Ratings
Description
Coldletter is an email design and automation layer that helps teams create, manage, and send product emails without replacing their existing email provider. It connects with delivery services such as SendGrid, Postmark, Amazon SES, Mailgun, Resend, and SparkPost, giving companies flexibility while keeping sending infrastructure intact. The platform includes a visual editor where teams can build templates, add variables, reuse blocks, and preview emails across clients such as Gmail, Outlook, and Apple Mail. Every template is designed to be responsive, accessible, and safe for dark mode by default. Developers can trigger templates through a single API request while Coldletter handles rendering, data merging, routing, retries, suppression, and idempotency. Marketing, lifecycle, design, and product teams can use the platform to manage email content without constantly relying on engineering for every change. Journey automation tools allow users to create workflows based on events, schedules, engagement, attributes, or A/B testing paths. Version control, template diffs, rollbacks, localization, test sends, roles, approvals, and analytics help teams manage production emails with more confidence. Coldletter gives organizations a structured way to build polished product emails while improving collaboration between technical and non-technical teams.
Description
Mailrith is an email marketing and automation platform built for startups, creators, newsletter operators, small businesses, agencies, and growing teams.
Users can collect Subscribers through hosted forms, embedded forms, and landing pages, then organize them using tags, custom fields, and dynamic segments. They can send one-time Broadcasts, create automated Sequences, build visual Automations, manage reusable email templates, and use Magic Links to trigger actions when Subscribers click links.
Mailrith also supports bring-your-own SMTP through Amazon SES, Postmark, SendGrid, Mailgun, Resend, Brevo, or a custom SMTP server. This gives users greater control over their email infrastructure and sending costs.
For teams and developers, Mailrith includes shared workspaces, user permissions, API access, webhooks, OAuth support, and TypeScript and Python SDKs. This makes it suitable for both everyday email marketing and more advanced, connected business workflows.
API Access
Has API
API Access
Has API
Screenshots View All
No images available
Integrations
Amazon SES
Postmark
SendGrid
Brevo
ChatGPT
Claude
Mailgun
Resend
Zapier
Integrations
Amazon SES
Postmark
SendGrid
Brevo
ChatGPT
Claude
Mailgun
Resend
Zapier
Pricing Details
$0
Free Trial
Free Version
Pricing Details
$29/month
Fixed Pricing (Pricing doesn't increase with number of subscribers or emails sent)
Available Plans:
1. Solo Plan - $29/month or $290/year
2. Pro Plan - $49/month or $490/year
3. Agency Plan - $149/month or $1490/year (Additional Workspaces available at $12/month/workspace)
Available Plans:
1. Solo Plan - $29/month or $290/year
2. Pro Plan - $49/month or $490/year
3. Agency Plan - $149/month or $1490/year (Additional Workspaces available at $12/month/workspace)
Free Trial
Free Version
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Vendor Details
Company Name
Optosoftware inc.
Founded
2025
Country
Canada
Website
coldletter.com
Vendor Details
Company Name
Mailrith
Founded
2026
Country
India
Website
mailrith.com
Product Features
Email Marketing
A/B Testing
Artificial Intelligence
Auto-Responders
CAN SPAM Compliance
Customer Surveys
Drip Campaigns
Dynamic Content
Event Triggered Email
Image Library
Landing Pages/Web Forms
Mailing List Management
Mobile Optimized Emails
Reporting/Analytics
Subscriber Management
Template Management
WYSIWYG Email Editor
Email Template Design
A/B Testing
Code From Scratch
Drag & Drop Editing
Image Library
Import HTML Code
Mobile-Friendly / Responsive
Potential Issue Identification
Premade Templates
Proofing
Reporting / Analytics
Text Editor
Theme Editor
Product Features
Email Marketing
A/B Testing
Artificial Intelligence
Auto-Responders
CAN SPAM Compliance
Customer Surveys
Drip Campaigns
Dynamic Content
Event Triggered Email
Image Library
Landing Pages/Web Forms
Mailing List Management
Mobile Optimized Emails
Reporting/Analytics
Subscriber Management
Template Management
WYSIWYG Email Editor