Inbucket
Inbucket is an email testing application; it will accept messages for any email address and make…
12 Alternatives To Inbucket
Courier-MTA
The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open…
Debugmail
Easy to use mail server for developers
Exim
Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
Haraka
Open source SMTP server written in Node.js
Lettre
Lettre is a mailer library for Rust.
MailCatcher
MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a…
MailHog
MailHog is an email testing tool inspired by MailCatcher, but easier to install.
Mailosaur
Email Testing for QA & Development Teams.
Microsoft SMTP Server
Configure SMTP e-mail in IIS when you want to deliver e-mail messages from your site.
NikaMail
NikaMail is a portable, extendable, zero-config email server.
OpenSMTPD
OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with…
SMTP Bucket
A web based fake SMTP server for e-mail integration testing.