Email Misdelivery Prevention Tool "FlexConfirmMail for Outlook" Version 2.0.0 Released
ClearCode Inc. has released version 2.0.0 of "FlexConfirmMail for Outlook," an email misdelivery prevention tool for Microsoft Outlook. New features include converting to BCC when there are many recipients, highlighting external domains in To/CC, and prohibiting sending if unexpanded distribution lists or contact groups are included. A new subscription plan for small-scale users has also been launched.
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- 📰 Published: April 10, 2026 at 01:22
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ClearCode Inc. (Headquarters: Tokorozawa City, Saitama Prefecture, Representative Director: Kohei Sudo, hereinafter "ClearCode") announced the release of version 2.0.0 of "FlexConfirmMail for Outlook," an email misdelivery prevention tool for Microsoft Outlook (Classic Outlook / New Outlook / Outlook on the web).
With this release, new features have been added, such as "converting to BCC when there are many recipients," "highlighting To/CC of external domains," and "prohibiting sending if unexpanded distribution lists or contact groups are included."
## What is FlexConfirmMail?
FlexConfirmMail is a misdelivery prevention solution released by ClearCode in 2014 for Mozilla Thunderbird. It has been used by tens of thousands of users in various industries, including government agencies, universities and research institutions, manufacturing, and information and communication. FlexConfirmMail for Outlook is an Office add-in compatible with the new Outlook.
### Main Features
* Displays a dialog to confirm recipients and attachments when sending an email or appointment.
* It can effectively prevent sending errors by allowing easy confirmation in a checklist format.
* The items in the checklist and the behavior during confirmation, such as text color, can be finely adjusted through settings.
* After confirming the sending of an email or appointment, a countdown is displayed for a certain period, during which the sending of the email or appointment can be canceled.
* After confirming the sending of an email, you can set it to actually send the email after a certain period has passed.
* Settings for each function can be centrally managed.
## FlexConfirmMail Subscription Service
The FlexConfirmMail subscription agreement is a service for corporations using FlexConfirmMail for Outlook. This time, we will start a plan for small-scale users.
### Service Contents
* Signed FlexConfirmMail for Outlook installer
* Product manual
* FlexConfirmMail inquiry support
### Contract Type
Annual subscription contract
### Price List
Prices are set according to the number of users.
User Count | Annual Fee (excluding consumption tax) | Maximum Incident Response Time
---|---|---
Up to 100 | 160,000 JPY | 5 hours
With this release, new features have been added, such as "converting to BCC when there are many recipients," "highlighting To/CC of external domains," and "prohibiting sending if unexpanded distribution lists or contact groups are included."
## What is FlexConfirmMail?
FlexConfirmMail is a misdelivery prevention solution released by ClearCode in 2014 for Mozilla Thunderbird. It has been used by tens of thousands of users in various industries, including government agencies, universities and research institutions, manufacturing, and information and communication. FlexConfirmMail for Outlook is an Office add-in compatible with the new Outlook.
### Main Features
* Displays a dialog to confirm recipients and attachments when sending an email or appointment.
* It can effectively prevent sending errors by allowing easy confirmation in a checklist format.
* The items in the checklist and the behavior during confirmation, such as text color, can be finely adjusted through settings.
* After confirming the sending of an email or appointment, a countdown is displayed for a certain period, during which the sending of the email or appointment can be canceled.
* After confirming the sending of an email, you can set it to actually send the email after a certain period has passed.
* Settings for each function can be centrally managed.
## FlexConfirmMail Subscription Service
The FlexConfirmMail subscription agreement is a service for corporations using FlexConfirmMail for Outlook. This time, we will start a plan for small-scale users.
### Service Contents
* Signed FlexConfirmMail for Outlook installer
* Product manual
* FlexConfirmMail inquiry support
### Contract Type
Annual subscription contract
### Price List
Prices are set according to the number of users.
User Count | Annual Fee (excluding consumption tax) | Maximum Incident Response Time
---|---|---
Up to 100 | 160,000 JPY | 5 hours