Top 9 Open-Source Alternatives to Flowmailer

Product categories

Email Email Clients Email Delivery Email Management Email Marketing Email Marketing Platforms Email Newsletters Email Productivity Email Testing Newsletter Marketing Office Suites Transactional Email

Summary

The top open-source alternatives to Flowmailer are Postmark, Mailgun, and YayMail by YayCommerce. 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.

Postmark Landing Page
1

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
Mailgun Landing Page
2

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
YayMail by YayCommerce Landing Page
3

YayMail by YayCommerce

Editing WooCommerce emails can be time-consuming. YayMail comes to help you design it fast and beautifully.
Pricing:
- Open Source
- Freemium
- Free Trial
- $59.0 / Annually (1 Site)
#Email #Wordpress Plugins #WordPress eCommerce
Transactional Email Templates by Postmark Landing Page
4

Transactional Email Templates by Postmark

Open source email templates for use in your SaaS app.
Pricing:
- Open Source
#Email Marketing #HTML To PDF #Email
MailHog Landing Page
5

MailHog

MailHog is an email testing tool inspired by MailCatcher, but easier to install.
Pricing:
- Open Source
#Email #Office Suites #Email Testing
PHPMailer Landing Page
6

PHPMailer

Email sending library for PHP.
Pricing:
- Open Source
#Email Marketing #Email Delivery #Transactional Email
Mailtrap Landing Page
7

Mailtrap

Email Delivery Platform that delivers just in time.  Great for businesses and individuals.
Pricing:
- Open Source
- Freemium
#Office Suites #Email #Email Testing 50 social mentions
Roundcube Landing Page
8

Roundcube

Web-based IMAP email client
Pricing:
- Open Source
#Email #SMTP Server #Email Clients 16 social mentions
Adcrux.io Landing Page
9

Adcrux.io

Adcrux is a platform for SMTP servers & email marketing automation. Adcrux offers solutions for email marketing campaigns, SMTP servers deployment, and custom email solutions Try it now!
Pricing:
- Open Source
- Paid
#Email #Email Marketing #Email Marketing Platforms