InterNations/antwort
"Beautiful responsive email templates with code as beautiful as email templates can be"
Email Parser And Workflow Automation - mailparser.io
"Stop your copy & paste routine. Pull data from incoming e-mails and automate your workflow within minutes."
inboxapp/inbox
"Inbox is a set of tools to make it simple and quick to develop apps and services on top of email."
sj26/mailcatcher
"Catches mail and serves it through a dream.
MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a web interface. Run mailcatcher, set your favourite app to deliver to smtp://127.0.0.1:1025 instead of your default SMTP server, then check out http://127.0.0.1:1080 to see the mail that's arrived so far."
sj26/mailcatcher
"Catches mail and serves it through a dream.
MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a web interface. Run mailcatcher, set your favourite app to deliver to smtp://127.0.0.1:1025 instead of your default SMTP server, then check out http://127.0.0.1:1080 to see the mail that's arrived so far."
HTML EMAIL BOILERPLATE v 0.4 updated 5/12
Welcome to the HTML Email Boilerplate. This website and its sample code creates a template of sorts, absent of design or layout, that will help you avoid some of the major rendering problems with the most common email clients out there — Gmail, Outlook, Yahoo Mail, etc. While not plug and play (you know, you'll have to do some work ;-), it will provide some helpful examples and snippets that will keep your email design rendering as true-to-form as possible.
Fakemail is an SMTP gateway replacement to make mail testing easier
fakemail is a fake mail server that captures emails as files for acceptance testing. This avoids the excessive configuration of setting up a real mail server and trying to extract mail queue content.
Email On Acid - Virtual Email Simulation and Testing