loading sample data attempts to send email

[jsqu99]

$ rake spree_sample:suppliers
Creating Suppliers...
rake aborted!
Missing host to link to! Please provide the :host parameter, set default_url_options[:host], or set :only_path to true

after adding: config.action_mailer.default_url_options = { :host => 'localhost' } to application.rb, got:

Creating Suppliers...
rake aborted!
Connection refused - connect(2)

b/c it is trying to send a welcome mail do to:

after_create :send_welcome, if: -> { SpreeDropShip::Config[:send_supplier_email] }

in the supplier class.