### sending mail using sendcloud

```ruby
response = RestClient.post "http://api.sendcloud.net/apiv2/mail/send", :attachments => File.new('all.sql','rb'),:apiUser => 'metalist',:apiKey => 'key',:from => "leslie_wen@qq.com",:fromName => "noname",:to => "leslie_wen@qq.com",:subject => "users assets",:html => 'users assets: attachments'

```