Preview Rails mailers with letter_opener, MailCatcher and MailHog

This article covers everything you ever wanted to know (and more) about previewing emails and ActionMailer templates in Ruby on Rails. I cover native ActionMailer previews, the letter_opener gem, MailCatcher and MailHog. I've tested them all, and I cover how to use them, and their pros and cons.
Related Topics: Ruby on Rails
  • Railsでメールをpreviewする方法についてのまとめ。Rails標準添付のActionMailer::Preview か letter_openerが一般的だと思うが、他にMailCatcherとMailHogというのが紹介されている。