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Average Ratings 0 Ratings

Total
ease
features
design
support

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Write a Review

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

Mailvex serves as an intuitive email builder tailored for teams seeking to create on-brand emails without the need for a designer or developer. Users can construct emails by utilizing pre-designed blocks, while their brand kit is seamlessly integrated; simply upload a PDF brand guide, and Mailvex automatically extracts essential elements like colors, fonts, logos, and spacing, applying them consistently across all templates. The platform adeptly manages the intricacies of email coding, including table-based layouts, inline styles, dark mode compatibility, mobile spacing adjustments, and a weight counter that ensures emails remain within clipping limits. Routine tasks are automated by AI, enabling users to generate an entire email based on a description, modify specific blocks, craft subject lines, create alt text, or even translate content. Additionally, layouts can be imported from various sources such as Figma, screenshots, or existing HTML, providing flexibility in design. The output produced is clean HTML that can easily be pasted into any email sending platform, complete with merge-tag profiles to facilitate personalization without requiring code adjustments. Mailvex offers 160 templates spanning 10 different industries, supports four interface languages, and includes a free plan that has no time restrictions, making it accessible to a wide range of users. This combination of features ensures that teams can efficiently produce high-quality emails that align with their branding goals.

API Access

Has API

API Access

Has API

Screenshots View All

No images available

Screenshots View All

No images available

Integrations

Amazon SES
Postmark
SendGrid

Integrations

Amazon SES
Postmark
SendGrid

Pricing Details

$0
Free Trial
Free Version

Pricing Details

$12/month
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

Mailvex

Founded

2026

Website

mailvex.tech

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 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

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