What are my IONOS IMAP settings?

IMAP is imap.ionos.com on port 993 (SSL); SMTP is smtp.ionos.com on port 465. We fill these in from your address.

Do I need an app password for IONOS?

No. IONOS uses your normal mailbox password for IMAP.

Does IONOS calendar work?

On Mail Basic and Mail Business plans that include CalDAV, yes. We discover it on connect; if your plan has no calendar, email still works.

Connect your IONOS email to Claude & ChatGPT

IONOS (1&1) mailboxes are standard IMAP. If you host your domain with IONOS, your inbox is locked out of every AI assistant's native connector, and anymailmcp.com opens it up.

Get started Setup guide

Server settings (auto-detected)

IMAP: imap.ionos.com:993
SMTP: smtp.ionos.com:465
Encryption: SSL/TLS

Calendar: depends on your plan

CalDAV is available on IONOS Mail Basic and Mail Business plans. If your plan includes it, we attach the calendar automatically on connect; entry-level plans without CalDAV still connect for email.

Before you start

What you need

Your IONOS email and password

The address and password from your IONOS control panel. Username is your full email address.

IMAP access (on by default)

IONOS mailboxes accept IMAP without any extra setup.

Set it up in your AI

Your IONOS inbox, inside your assistant

Read and triage your IONOS 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/mcp