WiLL Mail Ranked First in Email Distribution System Category in "BOXIL Document Request Ranking First Half of 2026"

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.

Details of the "BOXIL Document Request Ranking First Half of 2026" can be viewed on the official website.

https://boxil.jp/ranking/

*1 SaaS stands for Software as a Service. It refers to the form in which functions traditionally provided as packaged software are offered as a cloud service.

*2 The number of document requests refers to the number of times document request information has actually been provided to companies for services offered by companies with paid listings. In cases of a tie in the number of document requests, services with more reviews are given priority. This display order is adopted based on the policy of widely introducing services that are easy for BOXIL users to compare and select.

Reviews for "WiLL Mail" can be found here:

URL: https://boxil.jp/service/610/

About WiLL Mail

WiLL Mail is an email distribution system designed with a focus on efficiency, cost reduction, and user-friendly operation in email distribution. It comes standard with essential email distribution functions such as email distribution, email creation, email analysis, data management, security, and API functions.

Examples include SMS Carrier Co., Ltd., Hinokiya Group Co., Ltd., Hobonichi Co., Ltd., Yazuya Co., Ltd., Amana Inc., TAC Co., Ltd., and Flower Cupid Co., Ltd. As of June 15, 2026, the cumulative number of companies that have introduced the system exceeds 3,100.

Company Profile

Company Name: Sapana Inc.

Headquarters Location: Shinagawa YMD Building 9F, 2-4-1 Minami-Shinagawa, Shinagawa-ku, Tokyo

President: Shinichi Goto

Established: March 2010

Business Overview: Development and operation of the marketing cloud "WiLL Cloud"

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Company names and product/service names (including logos) mentioned are trademarks of their respective companies or registered trademarks of their respective rights holders.