Coldletter

Coldletter

Optosoftware inc.
Mailjet

Mailjet

Sinch
+
+

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About

Coldletter is an email templating and automation platform built for product and engineering teams that need better control over the emails their applications send. The platform works on top of providers such as SendGrid, Postmark, Amazon SES, Mailgun, Resend, and SparkPost, allowing teams to keep their existing delivery stack. Users can design responsive, accessible, and dark-mode-safe email templates with a visual editor instead of hand-coding complex HTML or MJML. Coldletter also supports reusable blocks, typed variables, live previews, test sends, localization, version control, and approval workflows. Its automation tools let teams build email journeys with triggers, waits, branches, A/B testing, and delivery analytics. Coldletter helps teams design, automate, manage, and deliver product emails more reliably from one centralized workspace.

About

The email solution for fast-moving teams. We know how hard it can be to find an affordable and effective email service. Mailjet is the perfect solution for your needs, our advanced features help you grow your business at a very reasonable price. Effortlessly craft beautifully responsive email in just a few clicks with our email editor, Passport. Use our rich library of free email templates or create your own design from scratch. Use Mailjet’s Collaboration Toolkit to work on the same email template or campaign in real time to increase your team’s efficiency. Drastically shorten feedback cycle with commenting and approval workflow features to go faster. Personalize each email with customer data you collect and segment your contact list to send the right content to the right customer. It’s easy to make each of your recipients feel special. Optimize the performance of your campaign with real-time statistics available with each sending.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Coldletter is designed for product teams, engineering teams, lifecycle marketers, SaaS companies, and developers that need a centralized platform for designing, automating, versioning, and sending product emails through existing providers

Audience

Companies of all sizes

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$0
Free Version Supported
Free Trial Not Supported

Pricing

$9.65 per month
Free Version Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 4.7 / 5
design 5.0 / 5
support 4.7 / 5

Pros & Cons from Real Users

Pros

  • We needed a email marketing platform that didn't cost us an arm and a leg. Mailchimp kept raising their price, so we had to find an alternative. Mailjet does the job at 1/10 the price. Sure you are missing a lot of the bells and whistles since Mailchimp has morphed into a complete marketing platform, but we weren't really using those features anyway.
  • Mailjet is an absolute email marketing platform to give your campaign a professional and reliable place to manage. My favorite thing about Mailjet is its "Email Drip campaign". It's a time saving, automated and helps to schedule emails.
  • Using Mailjet you can easily establish an email campaign. Mailjet helps to achieve a marketing goal. Newsletters are easily designed and customized. Useful reports about user engagement.

Cons

  • Lacked certain features, no giphy or built in images. There aren't too many templates either, but it's not that big of a deal.
  • I would more happy if they add more integration and exporting option.
  • It's a perfect email marketing platform. No dislikes.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Supported

Company Information

Optosoftware inc.
Founded: 2025
Canada
coldletter.com

Company Information

Sinch
Founded: 2008
Sweden
mailjet.com

Alternatives

Alternatives

SMTP.com

SMTP.com

Ziff Davis
AledaMail

AledaMail

Senders
SendGrid

SendGrid

Twilio SendGrid
sendbunny

sendbunny

Sendbunny
SendGrid

SendGrid

Twilio SendGrid

Categories

Categories

Bulk Email Supported
Email APIs Supported
Email Marketing Supported
Email Tracking Supported
SMTP Supported

Email Marketing Features

A/B Testing Supported
Artificial Intelligence Not Supported
Auto-Responders Not Supported
CAN SPAM Compliance Supported
Customer Surveys Supported
Drip Campaigns Supported
Dynamic Content Supported
Event Triggered Email Supported
Image Library Supported
Landing Pages/Web Forms Supported
Mailing List Management Supported
Mobile Optimized Emails Supported
Reporting/Analytics Supported
Subscriber Management Supported
Template Management Supported
WYSIWYG Email Editor Supported

Email Tracking Features

A/B Testing Supported
Audience Segmentation Supported
Campaign Management Supported
Event-Based Notifications Supported
Location Tracking Not Supported
Team Management Supported

Transactional Email Features

A/B Testing Supported
Contact Database Supported
Dynamic Content Supported
Email Monitoring Supported
Mailing List Management Supported
Reporting/Analytics Supported
Spam Check Supported
Template Management Supported

Integrations

Alooma Not Supported
Axis LMS Not Supported
Capsule Not Supported
Causal Not Supported
Codeless Platforms BPA Platform Not Supported
Create Next Startup Not Supported
EasySendy Pro Not Supported
Gravity Forms Not Supported
HostBill Not Supported
Joomla! Not Supported
OfficeClip Contact Management Not Supported
OptiMonk Not Supported
Polar Analytics Not Supported
Raklet Not Supported
Rayven Not Supported
Revamp CRM Not Supported
Shopify Not Supported
Slack Not Supported
Stackreaction Not Supported

Integrations

Alooma Supported
Axis LMS Supported
Capsule Supported
Causal Supported
Codeless Platforms BPA Platform Supported
Create Next Startup Supported
EasySendy Pro Supported
Gravity Forms Supported
HostBill Supported
Joomla! Supported
OfficeClip Contact Management Supported
OptiMonk Supported
Polar Analytics Supported
Raklet Supported
Rayven Supported
Revamp CRM Supported
Shopify Supported
Slack Supported
Stackreaction Supported
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