Email configuration required.

You can use SMTP or SendGrid.

SendGrid

Required:

EmailSenderOptions__Provider=SendGrid (default provider is Smtp)

EmailSenderOptions__SendGridApiKey

EmailSenderOptions__FromAddress

Optional:

EmailSenderOptions__FromName (optional, default: KnowledgeFabric Administration)

SMTP

Required:

EmailSenderOptions__Provider=Smtp (optional, default: Smtp)

EmailSenderOptions__FromAddress

EmailSenderOptions__SmtpHost

EmailSenderOptions__SmtpPort (no default, set explicitly)

Conditionally required (if SMTP auth is enabled):

EmailSenderOptions__SmtpUsername

EmailSenderOptions__SmtpPassword

Optional:

EmailSenderOptions__FromName (optional, default: KnowledgeFabric Administration)

EmailSenderOptions__SmtpUseSsl (optional, default: false; recommended to set explicitly)