Privacy policy
Effective October 26, 2026
In short
MailMateJ is a mail app that runs on your Mac. Your mail stays on your Mac and on your mail providers' servers. MailMateJ has no servers of its own, collects nothing about you, and shares nothing with anyone.
What MailMateJ accesses
When you add a Gmail account, you sign in with Google and allow MailMateJ access to your Gmail
(the https://mail.google.com/ scope). With it, MailMateJ reads your messages,
labels and settings, and changes them only when you act: marking, flagging, moving, labeling,
archiving or deleting messages, and sending and saving the mail you write.
For other accounts, MailMateJ uses the server address, user name and password or token you enter.
Where your data is kept
- Your messages, and what MailMateJ needs to show and search them, are stored on your Mac, in MailMateJ's folder in your user Library.
- Your sign-ins (passwords, tokens and Google's sign-in token) are stored in your Mac's keychain.
- MailMateJ connects only to Google's Gmail and sign-in services and to the mail servers you add. Pictures and other remote content in messages load only when you allow them.
What MailMateJ doesn't do
- It doesn't send your data, or anything about how you use it, to the developer or to any third party.
- It has no analytics, tracking or advertising.
- It doesn't use your data to train any AI or machine learning model.
- It doesn't sell, rent or transfer your data.
Google user data
MailMateJ's use and transfer of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements. Gmail data is used only to provide the app's features to you, on your Mac, and is never read by people.
Removing your data
Removing an account in MailMateJ deletes its stored mail and sign-in from your Mac. Deleting the app's folder removes everything. To withdraw MailMateJ's access to your Google account at any time, remove it at myaccount.google.com/permissions.
Changes and contact
If this policy changes, the new version will be posted on this page with its date. Questions: [email protected].