Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

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

Craft stunning email templates that perform seamlessly across all devices using an intuitive drag-and-drop email editor. You can either create your design from the ground up or choose from a selection of our professionally crafted templates. Additionally, design GDPR-compliant forms for your website or social media, synchronize your subscriber lists with various applications, or, for those with technical expertise, utilize the extensive API to manage your data as needed. Launch email campaigns, send transactional messages, or set up automation while monitoring real-time analytics on how recipients engage with your emails, such as reading, clicking links, or opting out. Build intricate automations effortlessly by dragging and dropping elements, allowing you to automatically dispatch emails, wait for specific triggers, set objectives, and much more with ease. The MPZMail Drag and Drop editor simplifies the process of crafting beautiful emails, and we invite you to explore some of the impressive email marketing templates created by our satisfied customers to get inspired. This way, you can elevate your email marketing strategy and ensure a professional presentation for your audience.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

No images available

Screenshots View All

Integrations

Amazon SES Yes 
Postmark Yes 
Salesmate No 
SendGrid Yes 

Integrations

Amazon SES No 
Postmark No 
Salesmate Yes 
SendGrid No 

Pricing Details

$0
Free Trial No 
Free Version Yes 

Pricing Details

$5 per month
Free Trial Yes 
Free Version Yes 

Deployment

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

Customer Support

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

Customer Support

Business Hours Yes 
Live Rep (24/7) Yes 
Online Support Yes 

Types of Training

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

Types of Training

Training Docs Yes 
Webinars Yes 
Live Training (Online) Yes 
In Person Yes 

Vendor Details

Company Name

Optosoftware inc.

Founded

2025

Country

Canada

Website

coldletter.com

Vendor Details

Company Name

MPZMail

Founded

2006

Country

United Kingdom

Website

www.mpzmail.com

Product Features

Email Marketing

A/B Testing No 
Artificial Intelligence No 
Auto-Responders No 
CAN SPAM Compliance No 
Customer Surveys No 
Drip Campaigns No 
Dynamic Content No 
Event Triggered Email No 
Image Library No 
Landing Pages/Web Forms No 
Mailing List Management No 
Mobile Optimized Emails No 
Reporting/Analytics No 
Subscriber Management No 
Template Management No 
WYSIWYG Email Editor No 

Email Template Design

A/B Testing No 
Code From Scratch No 
Drag & Drop Editing No 
Image Library No 
Import HTML Code No 
Mobile-Friendly / Responsive No 
Potential Issue Identification No 
Premade Templates No 
Proofing No 
Reporting / Analytics No 
Text Editor No 
Theme Editor No 

Product Features

Email Marketing

A/B Testing Yes 
Artificial Intelligence No 
Auto-Responders Yes 
CAN SPAM Compliance Yes 
Customer Surveys Yes 
Drip Campaigns Yes 
Dynamic Content Yes 
Event Triggered Email Yes 
Image Library Yes 
Landing Pages/Web Forms Yes 
Mailing List Management Yes 
Mobile Optimized Emails Yes 
Reporting/Analytics Yes 
Subscriber Management No 
Template Management Yes 
WYSIWYG Email Editor Yes 

Email Template Design

A/B Testing No 
Code From Scratch No 
Drag & Drop Editing No 
Image Library No 
Import HTML Code No 
Mobile-Friendly / Responsive No 
Potential Issue Identification No 
Premade Templates No 
Proofing No 
Reporting / Analytics No 
Text Editor No 
Theme Editor No 

Alternatives

AledaMail Reviews

AledaMail

Senders

Alternatives

SendGrid Reviews

SendGrid

Twilio SendGrid