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Connect other calendars

Use your uMail calendar in Google Calendar, Outlook, Apple, Notion Calendar, Cal.com, Calendly, Thunderbird and DAVx5, and see those calendars inside uMail.

There are three ways to connect calendars. Pick the one that fits the app.

Way 1: use your uMail calendar in other apps (Calendar sync)

Open Settings and go to Calendar sync. You will see the server address, the calendar address and your username. Use your uMail password, or make an app password: choose Create an app password for your phone, give the device a name, and copy the password. An app password is shown only once. If you lose the device, delete its app password in Settings and nothing else changes.

iPhone, iPad and Mac

1. iPhone: open Settings, then Calendar, Accounts, Add Account, Other, Add CalDAV Account. Mac: open System Settings, Internet Accounts, Add Other Account, CalDAV account.
2. For the server, enter the server address from uMail Settings.
3. Enter your username and your password or app password, then choose Next.

Android with DAVx5

1. Install DAVx5 and open it. Choose the plus button, then Login with URL and user name.
2. For the base URL, enter the server address from uMail Settings. Enter your username and your password or app password.
3. Choose Login. DAVx5 finds your calendar. Turn it on and choose the sync button.
4. Open your calendar app on the phone. Your uMail events are there.

Thunderbird

1. Choose the plus next to Calendars, then On the Network.
2. Enter your username and paste the calendar address from uMail Settings. Choose Find Calendars.
3. Enter your password or app password when asked, then choose Subscribe.

Cal.com

Cal.com can use your uMail calendar to avoid double bookings and to add new bookings. In Cal.com open Settings, then Calendars, and choose Connect calendar. Choose CalDAV. For the URL, enter the calendar address from uMail Settings. Enter your username and an app password. Make an app password just for Cal.com so you can delete it later.

Way 2: share a read only link (Private calendar link)

Some apps can show a calendar from a web link but cannot sign in to uMail. For these, open Settings, go to Private calendar link and choose Create a private calendar link. Copy the link now. It is shown only once. Under What the link shows, choose Show event titles or Show only busy times. With busy times, other apps see Busy and no title or place.

Anyone who has the link can see your calendar. Do not post it in public. If it gets out, choose Reset link. The old link stops working at once. Choose Turn off link to stop sharing.

The link shows events from the last month to the next six months. Other apps check it from time to time. Google and Outlook can take several hours to show a new event.

Google Calendar

1. Open Google Calendar on a computer. Next to Other calendars choose the plus, then From URL.
2. Paste your private link and choose Add calendar.
3. The calendar shows under Other calendars. It is read only in Google.

Outlook and Microsoft calendar

1. Open Outlook on the web and go to Calendar. Choose Add calendar, then Subscribe from web.
2. Paste your private link, give the calendar a name and choose Import.

Notion Calendar

Notion Calendar shows the calendars in your Google account. Add your uMail link to Google Calendar as above. After a short time it shows in Notion Calendar too.

Calendly

Calendly does not support CalDAV, so it cannot connect to uMail directly. Connect Calendly to Google Calendar or Outlook, and add your uMail link there as above. Calendly may then be able to use it when it checks for conflicts. This depends on the app, so test it with a booking.

Way 3: see other calendars inside uMail (Other calendars)

Open Settings and go to Other calendars. Paste the calendar link, give it a name, pick a color and choose Add calendar. The events show in your week and month views with that color and a small label with the name. They are read only. uMail reads each calendar again about every 15 minutes. Choose Update to read it now. Use the switch to hide a calendar without removing it. You can add up to 10.

Where to find the link:

• Google Calendar: on a computer, open Settings, choose your calendar, then Integrate calendar. Copy the Secret address in iCal format.
• Outlook on the web: open Settings, Calendar, Shared calendars. Under Publish a calendar choose the calendar, choose Can view all details, then Publish. Copy the ICS link.
• Apple Calendar: on a Mac, right-click the calendar, choose Share Calendar, turn on Public Calendar and copy the link. It starts with webcal, which works too.
• Notion Calendar: add the Google calendar that Notion Calendar uses, with its secret address from Google.
• Cal.com and Calendly: add the Google or Outlook calendar that they book into, with its secret address.

Treat these links like passwords. Anyone with the link can see the calendar. uMail keeps them private and never shows the full link again after you add it.

Good to know

• Other calendars are read only. To change an event, change it in the app it came from.
• uMail can read only public web links that start with https or webcal. Calendars behind a sign in cannot be added.
• A repeating event is shown on every date for common repeats such as every day, week, month or year. For unusual repeats, only the first date shows. uMail tells you when this happens.
• Connecting a Google or Microsoft account to uMail with a sign in, so changes go both ways, is planned for later.