Consumers that use @me.com, @mac.com or @icloud.com services for email may not be getting emails from marketers that use a "mail merge" service, such as Constant Contact, Direct
Mail, MaxBulk Mailer, MailChimp or Sailthru. These marketers are not getting bounces either, the emails are simply disappearing. This issue is only impacting HTML emails,
plaintext emails are not having this same deliverability problem.