Email integration - Preview stopped working after version v17.8.1

[zapling]

Describe the bug

When using the latest version v17.10.1 the email preview under netlify dev no longer works.

 curl -v http://localhost:8888/.netlify/functions/emails
*   Trying [::1]:8888...
* Connected to localhost (::1) port 8888
> GET /.netlify/functions/emails HTTP/1.1
> Host: localhost:8888
> User-Agent: curl/8.4.0
> Accept: */*
>
< HTTP/1.1 404 Not Found
< server: Netlify
< x-nf-request-id: 01HHM3H2X8A0PEV6X6A6G7PXYG
< x-powered-by: Express
< date: Thu, 14 Dec 2023 12:06:25 GMT
< connection: close
< content-length: 21
<
* Closing connection
Function not found...

I rolled back a couple of versions and it seems like v17.8.1 is the last version I can get this working in.

The documentation at https://docs.netlify.com/integrations/email-integration/ does not mention anything that isn't already done.

Steps to reproduce

• npm install [email protected] -g
• netlify build
• netlify dev

Configuration

[build]
  publish = "public"
  command = "hugo --gc --minify"

[context.production.environment]
  HUGO_VERSION = "0.121.0"
  HUGO_ENV = "production"
  HUGO_ENABLEGITINFO = "true"

[[plugins]]
  package = "@netlify/plugin-emails"

Environment

  System:
    OS: Linux 6.1 Arch Linux
    CPU: (16) x64 AMD Ryzen 9 PRO 6950H with Radeon Graphics
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 21.2.0 - /usr/bin/node
    npm: 10.2.4 - /usr/bin/npm
    pnpm: 8.8.0 - /usr/bin/pnpm
    bun: 0.8.0 - ~/.bun/bin/bun
  npmGlobalPackages:
    netlify-cli: 17.10.1

[husseiny]

Hey @zapling thanks for reporting this issue. I am seeing the same problem. Unfortunately I can't downgrade, when I do Netlify Dev crashes for me.