Detour is a utility for writing tests against a real SMTP server.
Rather than mocking/stubbing your SMTP client Detour allows you to send all email to an in-memory relay. Detour provides assertions that can be used to until test the deliverability of your emails.
Detour was inspired by Bypass. Kudos to that team.
Interesting however I have question - is using raw SMTP rather than some service like Mailgun or Sendgrid is that popular?
I can only answer for my team but we created this out of need. I imagine SMTP is a popular way of sending email considering it’s a standard and works across vendors. SMTP was around long before Mailgun, Sendgrid, etc.
Having said that I don’t really know though. I only know what we need.
SMTP is what we used across company. It’s certainly very much in use as that SMTP server sends mails in 5 digits each day.
Nice, but this is internally only or to the external receivers as well?
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