Sendria Alternatives
Sendria is described as '(formerly MailTrap) is a SMTP server designed to run in your dev/test environment, that is designed to catch any email you or your application is sending, and display it in a web interface instead of sending to real world' and is a Mail Server in the development category. There are six alternatives to Sendria for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and BSD. The best alternative is MailHog, which is both free and Open Source. Other great apps like Sendria are Mailtrap, Mailosaur, MailCatcher and Ethereal Email.
MailHog is an email testing tool inspired by MailCatcher, but easier to install.
Features
Mailtrap is a fake SMTP server for development teams to test, view and share emails sent from the development and staging environments without spamming real customers.
Email Testing for QA & Development Teams. Catch every email your product sends, analyze it's contents, follow links and test deliverability all via the Mailosaur API.
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.
Ethereal is a fake SMTP service, mostly aimed at Nodemailer users (but not limited to). It's a completely free anti-transactional email service where messages never get delivered.
Origami SMTP was created with the idea to have a fake email server for testing purposes that supported TLS. This is because the code the developer was working on at the time had several hard coded values enforcing TLS so most other solutions would not work.