WiLL Mail Ranked First in Email Distribution System Category in "BOXIL Document Request Ranking First Half of 2026" "WiLL Mail," provided by Sapana Inc. (Headquarters: Shinagawa-ku, Tokyo; President: Shinichi Goto; hereinafter referred to as "Sapana"), has been selected as the No. 1 service in the overall category of email distribution systems in the "BOXIL Document Request Ranking First Half of 2026" hosted by Smartcamp Inc. (hereinafter referred to as "Smartcamp"). It was also ranked No. 1 in the small and medium-sized business category and the consulting/specialist category within the same segment. The "BOXIL Document Request Ranking" is compiled by Smartcamp based on document requests made by users on the SaaS comparison site "BOXIL" and announced in a ranking format. The "BOXIL Document Request Ranking First Half of 2026" was determined based on the number of document requests made between January 1, 2026, and May 31, 2026. The No. 1 ranking in the overall email distribution system category, awarded to "WiLL Mail," was given to the service with the highest number of document requests during the specified period. "WiLL Mail" is an email distribution system that allows users to create and distribute highly designed HTML emails with drag-and-drop operations, without requiring specialized HTML knowledge. It supports automatic optimization for smartphones and allows users to check performance metrics such as open rates, click-through rates, conversions, and heatmaps within the management screen. In addition to its user-friendly interface, its features include a clear pricing structure based on the number of distributions, an operator function that allows for up to 100 licenses per contract, and secure team operation through multi-factor authentication (MFA), permission settings, and operation logs. The conversion rate from free trials to full contracts has been 41% over the past year, indicating that it is a service chosen after users have experienced it firsthand.