New article CalDAV

Signed-off-by: Zhenbo Li <[email protected]>

Author: Endle

content/2025-04-27-sync-caldav-replace-google-microsoft-calendar-with-northmail.md

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+---
+layout: post
+title: "Sync CalDav, Replace Google/MS Calendar, using northmail"
+description: ""
+category: 
+tags: []
+---
+
+#### Preface 
+Self-host a CalDav server is definitely doable, and I recommend having a try. I'm not a tech-savvy, and I'd promote a Canadian business, so I'm using northmail.ca in this article. It's easy to replace northmail.ca with self-hosted server or another service provider. I'm not affiliated with northmail.ca
+
+#### CalDav 
+
+Click Calendar button at header, then `Calendar Settings` at bottom-left.  
+
+Click `Copy primary CalDAV address`, we will get `https://cloud.northmail.ca/remote.php/dav` 
+
+Click `Copy iOS/macOS CalDAV address`, we will get `https://cloud.northmail.ca/remote.php/dav/principals/users/{user_email}/`.
+
+
+#### Add to Thunderbird Calendar 
+[Thunderbird](https://www.thunderbird.net/en-CA/) is an open-source, cross-platform email client. First, click the upper-left button or press Ctrl-3. 
+
+
+Click `New Calendar` at bottom-left, `On The Network`. `Username` is `[email protected]`, and Location is CalDav address.
+
+After typing the password, you can select calendars you need. For now (2025-04-27), northmail.ca doesn't support [2FA](https://en.wikipedia.org/wiki/Multi-factor_authentication) or [app password](https://support.google.com/accounts/answer/185833?hl=en), which is not the best practice.
+
+
+#### Add to iOS 15 Calendar 
+
+In Settings, scroll to bottom and click Apps. Click Calendar. Add Account -> Add CalDAV Account.
+
+In Server, paste the iOS CalDAV address. In `User Name` type the full email address. For now (2025-04-27), northmail.ca doesn't support [2FA](https://en.wikipedia.org/wiki/Multi-factor_authentication) or [app password](https://support.google.com/accounts/answer/185833?hl=en), which is not the best practice.
+
+#### Screenshots 
+I've taken screenshots at all critical steps. To keep the article brief, I moved all screenshots to the end of this article.
+
+![Northmail Screenshot](/images/2025/caldav/screenshot_northmail.png)
+![Thunderbird Screenshot](/images/2025/caldav/thunderbird_calendar.png)
+![Thunderbird Screenshot](/images/2025/caldav/thunderbird_add_account.png)
+![Thunderbird Screenshot](/images/2025/caldav/thunderbird_password.png)
+![Thunderbird Screenshot](/images/2025/caldav/thunderbird_calendar_select.png)
+![iOS Screenshot](/images/2025/caldav/ios_setting.jpg)
+![iOS Screenshot](/images/2025/caldav/ios_apps.jpg)
+![iOS Screenshot](/images/2025/caldav/ios_add_account.jpg)
+![iOS Screenshot](/images/2025/caldav/ios_add_other.jpg)
+![iOS Screenshot](/images/2025/caldav/ios_caldav.jpg)
+![iOS Screenshot](/images/2025/caldav/ios_password.jpg)
+