Client API signin method for email fail mysteriously

[mumingpo]

I am trying to configure my application to signin for google oauth and email login. I am using a custom sequelize adapter that closely followed the official sequelize adapter and I do not believe the bug originates there.

• Email sign in seems to work through /api/auth/signin. A email is correctly sent to my mail box, and I am able to sign in with this option (well... not quite, but that would be another issue).
• Email sign in does not work through calling signIn('email', { email });. No email is sent and I got sent to /api/auth/signin?error=EmailSignin with error message The e-mail could not be sent..
• By specifying { redirect: false }, the signIn client API call returns the following result: {error: 'EmailSignin', status: 200, ok: true, url: null}

I cannot really understand what is going on here and cannot really find any resources that can help me locate the issue. Has anybody encountered a similar problem? Any help would be appreciated.

[mumingpo]

By digging deeper into the docs I found that
if (!email) return { redirect: ${url}/error?error=EmailSignin }
and... duh, the email was not set correctly by my form :(

[mumingpo]

The error message could be a little more informative without causing a lot of security issues tho.