Marco Mail

If you see this message, your email provider has temporarily limited the number of IMAP requests your account can make.

IMAP connection has been rate-limited

Proton Mail does not expose a standard IMAP server on the internet.

Why Marco can’t connect to Proton Mail (or local IMAP servers)

Some Outlook.com and Microsoft 365 accounts require IMAP to be manually enabled. If this setting is off, OAuth and IMAP connections to Marco may fail.

How to enable IMAP for Outlook

If your account fails to connect, it’s usually due to a provider-side setting. Here are the most common fixes.

Troubleshooting IMAP or OAuth connection errors

To connect your iCloud or Apple Mail account to Marco, you’ll need to generate an App-Specific Password. This allows Marco to securely access your mailbox using IMAP.

How to create an app-specific password for Apple

Many email providers let you create multiple addresses that all point to the same inbox. These are called aliases, and Marco fully supports them.

What are email aliases in Marco?

Frequently Asked Questions

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