Foxmail
Vumonic Datalabs
Aqua Mail - 高速で安全な電子メール
Aqua Mail Inc
Yahoo Mail – Organized Email
Yahoo
Gmail
Google LLC
Microsoft Outlook
Microsoft Corporation
myMail: for Outlook & Yahoo
MGL MY.COM (CYPRUS) LIMITED
Samsung Eメール
Samsung Electronics Co., Ltd.
K-9 Mail
Mozilla Thunderbird
FairEmail, privacy aware email
Marcel Bokhorst, FairCode BV