Connect your Posteo email to Claude & ChatGPT
Posteo is privacy-first email that still speaks standard IMAP, which no assistant reaches natively. anymailmcp.com connects your posteo.de inbox and CalDAV calendar with one credential in about a minute.
- IMAP
- posteo.de:993
- SMTP
- posteo.de:465
- Encryption
- SSL/TLS
Posteo calendars sync over CalDAV at posteo.de on port 8443, and the same credential that opens IMAP opens the calendar, so mail and events arrive over one connection.
Before you start
What you need
Your Posteo address
posteo.de, posteo.net and Posteo's other country domains all sign in with the full address on the same server, posteo.de, for IMAP and SMTP alike.
An app password (recommended)
Posteo's own client guide points external programs at an app password: create one under Settings, "My account", "Password and security", "App passwords". Your account password also works over IMAP unless you enable Posteo's additional email account protection, which blocks it.
Posteo works best with a revocable app password.
Generate an app passwordSet it up in your AI
Your Posteo inbox, inside your assistant
Read and triage your Posteo mail, draft replies and manage your calendar, straight from the chat you already use. It takes about a minute to connect.
- Open Settings → Connectors in Claude Desktop or claude.ai.
- Click Add custom connector and paste the URL below.
- Click Connect, then sign in with your email (we send you a magic link). You add your mailbox from your profile afterwards.
https://anymailmcp.com/mcpPosteo questions
The specifics for your provider.
iCloud
OVH
Yahoo
GMX
AOL
Orange
QQ Mail
Zoho
Fastmail
Hostinger