danbooru/danbooru · error · Danbooru::EmailAddress::Error

#{string} is not a valid email address

Error message

#{string} is not a valid email address

What it means

Error "#{string} is not a valid email address" thrown in danbooru/danbooru.

Source

Thrown at app/logical/danbooru/email_address.rb:244

      fastmail.com
      relay.firefox.com
    ]

    # @return [String] The original email address as a string.
    attr_reader :address

    # @return [Mail::Address] The parsed email address.
    attr_reader :parsed_address

    delegate :local, :domain, to: :parsed_address
    alias_method :name, :local
    alias_method :to_s, :address

    # Parse a string into an email address, or raise an exception if the string is not a syntactically valid address.
    #
    # @param string [String, Danbooru::EmailAddress]
    def initialize(string)
      raise Error, "#{string} is not a valid email address" if !self.class.is_valid?(string)

      @address = string.to_s
      @parsed_address = Mail::Address.new(address)
    end

    # Parse a string into an email address, or return nil if the string is not a syntactically valid email address.
    #
    # @param url [String, Danbooru::EmailAddress]
    # @return [Danbooru::EmailAddress]
    def self.parse(address)
      new(address)
    rescue Error
      nil
    end

    # Parse a string into an email address while attempting to fix common typos and mistakes, or return
    # nil if the string can't be corrected into a valid email address.
    #

View on GitHub (pinned to 91fec09564)

Solutions

1. Enter a syntactically valid email address of the form user@example.com.
2. Check for typos, spaces, or a missing top-level domain in the address.

When it happens

Trigger: Thrown at app/logical/danbooru/email_address.rb:244 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of danbooru/danbooru@91fec09564 (2026-08-24). Data as JSON: /api/errors/008026f0c0e98fa9. Report an issue: GitHub.