ColdletterOptosoftware inc.
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Related Products
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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.
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About
Completely free for 500 contacts or less with no restriction on features or support. Drag & Drop email designer with 70+ design blocks to choose from. Every account loaded with inbox ready email templates, one thousand email credits & 10 SMS credits. Unlike Klaviyo, Mailchimp & Sendgrid our send servers are hosted in the EU so your data never leaves Europe. You can even add Do not track to your sign up forms. Earn lifetime revenue when you recommend Sensorpro. And all the tools you need to manage an agency account. Whether a small business or sending 1M emails a day, our independent infrastructure has scale and capacity without reliance on third-parties like Amazon or Sendgrid.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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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
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Audience
Companies that need an email marketing and survey solution
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and VideosNo images available
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Screenshots and Videos |
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Pricing
$0
Free Version
Free Trial
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Pricing
No information available.
Free Version
Free Trial
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Reviews/
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Reviews/
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationOptosoftware inc.
Founded: 2025
Canada
coldletter.com
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Company InformationSensorpro
Founded: 2001
Ireland
sensorpro.eu
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Categories |
Categories |
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Survey Features
Custom Survey URLs
Data Analysis Tools
Email Marketing
Mobile Survey
Offline Response Collection
Paper Survey
Question Branching
Question Library
Site Intercept Survey
Skip Logic
Supports Audio / Images / Video
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Integrations
Amazon SES
BigCommerce
KonnectzIT
Postmark
SendGrid
Shopify
Ultra Commerce
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Integrations
Amazon SES
BigCommerce
KonnectzIT
Postmark
SendGrid
Shopify
Ultra Commerce
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