Top 11 Open-Source Alternatives to turboSMTP

The top open-source alternatives to turboSMTP are Mailgun, Postmark, and Sparkpost. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Mailgun Landing Page
1

Mailgun

A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.
Pricing:
- Open Source
#Email Delivery #Transactional Email #Email Marketing 11 social mentions
Postmark Landing Page
2

Postmark

Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.
Pricing:
- Open Source
#Email Delivery #Email Marketing #Email Marketing Platforms 49 social mentions
Sparkpost Landing Page
3

Sparkpost

Deliver your app and website emails on time and to the inbox. Trusted to send 25% of the world's non-spam email. Email delivery for companies big and small.
Pricing:
- Open Source
#Email Marketing #Email Delivery #Email Marketing Platforms 3 social mentions
Amazon SES Landing Page
4

Amazon SES

Scale your business email & marketing messages with Amazon Simple Email Service (SES), a cost-effective and reliable cloud email service. Sign up today.
Pricing:
- Open Source
#Email Delivery #Email Marketing #Transactional Email 65 social mentions
Mailtrain Landing Page
5

Mailtrain

Self-hosted open-source Mailchimp clone
Pricing:
- Open Source
#Email Marketing #Newsletter Marketing #Email Marketing Platforms 2 social mentions
Mail-in-a-box Landing Page
6

Mail-in-a-box

Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.
Pricing:
- Open Source
#Email #Self-hosted Email #Email Service Provider 115 social mentions
PHPMailer Landing Page
7

PHPMailer

Email sending library for PHP.
Pricing:
- Open Source
#Email Marketing #Email Delivery #Transactional Email
Dada Mail Landing Page
8

Dada Mail

Email Marketing List Manager
Pricing:
- Open Source
#Email Marketing #Newsletter Marketing #Email Marketing Platforms 1 social mentions
Exim Landing Page
9

Exim

Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
Pricing:
- Open Source
#SMTP Server #Email #MTA
iRedMail Landing Page
10

iRedMail

A fully fledged, free email server solution, an open source project (GPL v2).
Pricing:
- Open Source
#Email #SMTP Server #Self-hosted Email 2 social mentions
MoonMail Landing Page
11

MoonMail

MoonMail is the easiest email marketing platform. Create, design and analyze your Email Marketing campaigns in a minute.
Pricing:
- Open Source
#Email Marketing #Email Marketing Platforms #Newsletter Marketing 1 social mentions