Folderly is an email deliverability platform that helps B2B sales teams, cold email outreach agencies, and marketing operators land in the primary inbox instead of spam. As a dedicated email deliverability tool for cold outreach, Folderly combines automated inbox warm-up, real-time placement testing across Gmail, Outlook, and Yahoo, SPF and DKIM monitoring, and content audits that flag spam triggers in your subject lines and bodies. Folderly is built for sales development teams running Smartlead, Instantly, or Lemlist sequences who need to maintain a healthy sender reputation across dozens of mailboxes at once.