InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →
Top 23 Ruby Email Projects
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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The website is out of date, last release was actually in may (like smtp4dev) https://github.com/sj26/mailcatcher/releases/tag/v0.10.0
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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Truemail
🚀 Configurable framework agnostic plain Ruby 📨 email validator/verifier. Verify email via Regex, DNS, SMTP and even more. Be sure that email address valid and exists.
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Sup
A curses threads-with-tags style email client (mailing list: [email protected]) (by sup-heliotrope)
Project mention: Sup: A curses threads-with-tags style email client | news.ycombinator.com | 2025-03-29 -
MailForm
Send e-mail straight from forms in Rails with I18n, validations, attachments and request information.
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heya
Heya 👋 is a campaign mailer for Rails. Think of it like ActionMailer, but for timed email sequences. It can also perform other actions like sending a text message.
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caffeinate
A Rails engine for drip campaigns/scheduled sequences and periodical support. Works with ActionMailer, and other things.
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Project mention: How to Setup a Project That Can Host Up to 1000 Users for Free | dev.to | 2024-06-04
The Rollbar’s ancestor, Airbrake, is another good choice (if you can afford it, because it has no free plan). You can see a detailed comparison between these two here: https://rollbar.com/vs/airbrake/. The same applies to Honeybadger — one more popular modern error management service for rails. In a nutshell, they do similar things but may have different bells and whistles.
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clauneck
A tool for scraping emails, social media accounts, and much more information from websites using Google Search Results.
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better_mailer_previews
Better Mailer Previews is a Ruby on Rails gem that makes it easier to preview ActionMailer email templates.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Ruby Email discussion
Ruby Email related posts
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Sup: A curses threads-with-tags style email client
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But how to get to that European cloud?
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MailCatcher runs a super simple SMTP server
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Show HN: I made an open source Mailchimp RSS-to-Email alternative
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How to Setup a Project That Can Host Up to 1000 Users for Free
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Postal: Open-source mail delivery platform for incoming and outgoing email
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Best practices for DB modifications MySQL
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A note from our sponsor - InfluxDB
www.influxdata.com | 16 May 2025
Index
What are some of the best open-source Email projects in Ruby? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Postal | 15,497 |
| 2 | MailCatcher | 6,615 |
| 3 | LetterOpener | 3,770 |
| 4 | 3,639 | |
| 5 | noticed | 2,532 |
| 6 | onetimesecret | 2,362 |
| 7 | premailer-rails | 1,721 |
| 8 | Roadie | 1,341 |
| 9 | Truemail | 1,213 |
| 10 | Ahoy Email | 1,144 |
| 11 | Pony | 1,137 |
| 12 | mailkick | 938 |
| 13 | Sup | 912 |
| 14 | MailForm | 875 |
| 15 | heya | 748 |
| 16 | Maily | 707 |
| 17 | MailyHerald | 582 |
| 18 | roadie-rails | 387 |
| 19 | caffeinate | 357 |
| 20 | Maktoub | 312 |
| 21 | Incoming | 308 |
| 22 | clauneck | 174 |
| 23 | better_mailer_previews | 165 |
Sponsored
InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com