It handles all email-associated requirements in one location, which includes email sandbox to examine and debug emails just before sending them to your recipients, email API or SMTP assistance to provide emails to recipients just in time, and actionable analytics to control email infrastructure performance. Spam problems: This exhibits https://www.upwork.com/services/product/development-it-email-deliverability-inbox-reduce-spam-dns-issues-fixed-dkim-spf-dmarc-1378055073774727168?ref=project_share&tier=0