Mailstream
One inbox and one calendar for every account you own. Mailstream brings Gmail, Outlook and Microsoft 365, iCloud and any IMAP mailbox together with your Google and Outlook calendars: read, answer and plan without switching apps.
What it does
A single inbox for all your accounts, with each account’s folders and labels, search across all of them, drafts, signatures and scheduled sending.
A single calendar with your Google and Outlook calendars: create, change and answer events, add events you receive by email and, on Outlook, see your colleagues’ availability.
Recipient suggestions from your Google and Outlook contacts and from the people you write to, and notifications of new mail and upcoming events, even with Mailstream closed.
Your accounts, your data
Google and Microsoft accounts are connected through their own sign-in pages: Mailstream never sees those passwords. It asks only for the access its features need: with Gmail it can read, organise and send mail, but not delete it permanently.
Mailstream’s use and transfer to any other app of information received from Google APIs will adhere to Google API Services User Data Policy, including the Limited Use requirements. Your data is not sold, and not used for advertising or to train artificial-intelligence models. The details are in the Privacy Policy.
Access tokens, passwords and message text are encrypted on our servers. Removing an account deletes at once what Mailstream stored from it.
Help
Write to [email protected]. Mailstream is made by Leucojum, Bologna, Italy; using it means you accept the Terms of service.