Download MailCalm
Choose the version for your Mac.
MailCalm 1.0.0 is available for macOS. If you already have a licence key, download the version that matches your Mac, then follow the setup guide to connect your Microsoft 365 shared mailbox.
Apple Silicon Mac
For most newer Macs
Use this if your Mac says:
Not sure which Mac you have?
- 1. Click the Apple menu in the top-left of your screen.
- 2. Choose “About This Mac”.
- 3. Look for “Chip” or “Processor”. If it says Apple M1, M2, M3, M4 or newer, choose Apple Silicon. If it says Intel, choose Intel.
Your subscription and changing Macs
The same MailCalm subscription covers either Mac version. If you move from an Intel Mac to an Apple Silicon Mac, or replace your computer, you do not need to buy MailCalm again.
You can install MailCalm on another Mac used by the same business, for example if you replace your computer or need a backup setup. Use the same licence key.
Treat the second Mac as a normal fresh setup: install MailCalm, enter the same licence key, sign in to Microsoft again, choose the shared mailbox again and review or recreate your settings.
For email safety, only one Mac can actively route the same shared inbox at a time. Do not copy hidden MailCalm app folders, Microsoft authentication files, token caches, runtime files, logs, router lock identifiers or activity history from one Mac to another.
After downloading
- 1. Open the downloaded DMG file.
- 2. Drag MailCalm to your Applications folder.
- 3. Open MailCalm and enter your licence key.
- 4. Sign in with Microsoft and choose your shared mailbox.
Need help? Email support@mailcalm.co. We aim to respond within one business day, Monday to Friday, 09:00 to 17:30 UK time, excluding UK public holidays.