MailHog vs MailSlurp: What are the differences?
MailHog: Web and API based SMTP testing. It is an email testing tool for developers. You can configure your application to use MailHog for SMTP delivery. You can view messages in the web UI, or retrieve them with the JSON API; MailSlurp: End-to-end email testing made easy. MailSlurp is an end-to-end email testing service. It has a web-app for managing your account and a REST API for sending and receiving emails from randomly generated email addresses.
MailHog and MailSlurp can be primarily classified as "Email Testing" tools.
Some of the features offered by MailHog are:
- ESMTP server implementing RFC5321
- Support for SMTP AUTH (RFC4954) and PIPELINING (RFC2920)
- Web interface to view messages (plain text, HTML or source)
On the other hand, MailSlurp provides the following key features:
- Create new inboxes during tests
- Send and receive via REST
- Test real functionality
MailHog and MailSlurp are both open source tools. It seems that MailHog with 5.16K GitHub stars and 342 forks on GitHub has more adoption than MailSlurp with 13 GitHub stars and 4 GitHub forks.