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marketing

UZonMail: Bulk Email Solutions

Send high-volume emails with UZonMail, an open-source bulk email platform for startup founders, with 240 GitHub stars.
intermediate⏱ 30 minutes💵 Free (self-hosted)
251 stars52 forksC#Quality 8/10Updated 7/23/2026100% free · open source
What it is

Send or schedule large emails to many people with UZonMail, a free and open-source bulk email platform.

What you can make with it

Email marketing campaigns like automated welcome emails when someone buys from your online store or EDM newsletters to your subscribers.

How it helps

UZonMail lets you send high volumes of emails efficiently and is widely used in various industries, saving you time and potential costs.

Real use case example

"A founder wants to welcome new customers with a personalized email when they make a purchase from their online store. They use UZonMail to bulk-email the welcome message and set up an automation. Now their new customers get the email automatically, and they don't waste time sending them via their personal account."

If you're new

Beginners should pick this up when they want to try creating email marketing campaigns without committing to a paid service.

If you're senior

Senior engineers and professionals reach for this when they need to send large quantities of emails but want a free, open-source solution.

Common confusion cleared up

Be aware that UZonMail has a wide range of features, and getting started may take some time to explore and set up.

Best inside these AI tools
CursorClaude DesktopGeminiSelf-hosted
Pairs with
Claude APIStripe webhookNotion database
Why we list it on WorkflowStacks: This is included in the marketplace because UZonMail is a free and open-source solution, making it accessible to everyone.
What it does

UZonMail is an open-source bulk email platform that allows startup founders to send high-volume emails for marketing and EDM campaigns

Install / run
Clone the repository using `git clone https://github.com/uyoufu/UZonMail.git`
When to use it
  • •When you need to send thousands of emails for a marketing campaign
  • •When you want to automate email marketing workflows with custom variables and AI-generated content
  • •When you require a self-hosted email marketing solution that supports multiple email account types
Quick start
  1. 1Navigate to the project directory using `cd UZonMail`
  2. 2Open the `UZonMail.exe` file (on Windows) or `UZonMail.csproj` file (on Linux/MacOS) to start the application
  3. 3Configure email account settings in the `appsettings.json` file, including SMTP server and authentication details
  4. 4Create a new email campaign using the `MailCampaign.cs` class and define your email template and recipient list
  5. 5Run the email campaign using the `MailSender.cs` class, which supports multi-threaded concurrent sending
Ready-to-paste prompt
Create a new email campaign with `var campaign = new MailCampaign { Template = "Hello {Name}", Recipients = new[] { "user1@example.com", "user2@example.com" } };` and send it using `var sender = new MailSender(); sender.Send(campaign);`
Heads up: Ensure you have the .NET Core 3.1 or later runtime installed on your system, as UZonMail is built using C# and requires this version to run
Saves to your device

Topics

bulk-email-sender
edm
What's inside — free to inspect
No purchase needed

Read the entire source before you build — unlike paid marketplaces that hide it behind a buy button.

5
top-level files
11
folders
25.8M
repo size
Apache-2.0
license
Key files
readme.md
README.zh-CN.md
File tree
.github/
.vscode/
backend-src/
docker/
docker-dev/
docs/
nginxConf/
resource/
scripts/
tests/
ui-src/
.dockerignore
.gitignore
LICENSE
readme.md
README.zh-CN.md
Quick Actions
Details
Creator
uyoufu
Language
C#
Category
marketing
Published
10/3/2020

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