Use a calendar client

Your Langmail calendars are standard CalDAV collections on mail.langmail.me. Any client that speaks CalDAV can subscribe to them for two-way sync, so events stay consistent across every client — including the invitations your agent sends.

Before you start

Interactive sign-in for Langmail is Google-based, so calendar clients authenticate with an app password instead of your account password — the same credential mail clients use. Open webmail, go to Settings → Security, and generate an app password. The secret is shown once, so copy it right away. One app password works for both mail and calendar; you can create one per device and revoke each independently from the same page.

Most clients discover your calendars automatically from the server address using RFC 6764 (/.well-known/caldav). If yours asks for a specific calendar URL instead, your default calendar is https://mail.langmail.me/dav/cal/you/default/ — replace you with the local part of your address. (The parent /dav/cal/you/ holds all your calendars; each additional one has its own /dav/cal/you/<id>/ URL.)

Connect your client

Use your full you@langmail.me address as the username and the app password as the password everywhere below.

Apple Calendar (Mac)
Apple Calendar (iPhone/iPad)
Thunderbird
Android (DAVx⁵)

Open System Settings → Internet Accounts → Add Account → Add Other Account.
Choose CalDAV account.
Set Account Type to Manual and fill in:

Field	Value
User Name	`you@langmail.me`
Password	your app password
Server Address	`mail.langmail.me`

Select Sign In. Your Langmail calendars appear in Calendar.

Open Settings → Calendar → Accounts → Add Account → Other.
Tap Add CalDAV Account and fill in:

Field	Value
Server	`mail.langmail.me`
User Name	`you@langmail.me`
Password	your app password

Tap Next. Your calendars sync into the Calendar app.

Open File → New → Calendar → On the Network.
Enter your username you@langmail.me and the location https://mail.langmail.me, then let Thunderbird find your calendars.
When prompted, enter the app password.
Select the calendars you want and Subscribe.

Android has no built-in CalDAV support, so use DAVx⁵, the standard open-source sync app (F-Droid or Play Store).

In DAVx⁵, add an account with Login with URL and user name.
Fill in:

Field	Value
Base URL	`https://mail.langmail.me`
User name	`you@langmail.me`
Password	your app password

Finish setup, then pick which calendars to sync. They appear in your Android Calendar app.

Connection details

For any other CalDAV client, these are the settings:

Setting	Value
Server address	`mail.langmail.me` (discovery at `https://mail.langmail.me/.well-known/caldav`)
Username	your full `you@langmail.me` address
Password	an app password from webmail (Settings → Security)
Calendar URL	`https://mail.langmail.me/dav/cal/you/default/` (your default calendar) — only if the client can’t auto-discover

An OAuth bearer token works too, over the same endpoint — that’s what the MCP calendar tools use — but app passwords are the practical choice for desktop and mobile calendar apps.

Google Calendar and Outlook

Neither Google Calendar nor classic Outlook can subscribe to a third-party CalDAV server for two-way sync — they only sync calendars within their own accounts. You can still invite people on those systems to your events: invitations go out as standard iMIP emails they can accept from Google Calendar, Outlook, or anything else that speaks iCalendar (see Calendar workflows). For two-way access from an Android phone, use DAVx⁵ as shown above.

Next steps

Calendar workflows

Schedule meetings, recurring series, and RSVPs through an agent.

Use a mail client

Read the same mailbox from Apple Mail, Thunderbird, or Outlook.

Open protocols

The full endpoint map for JMAP, CalDAV, IMAP, and SMTP.

​Before you start

​Connect your client

​Connection details

​Google Calendar and Outlook

​Next steps

Calendar workflows

Use a mail client

Open protocols

Before you start

Connect your client

Connection details

Google Calendar and Outlook

Next steps