Proton Mail MCP Server
by fincher65
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| DEBUG | No | Enable verbose logging to stderr | false |
| READONLY | No | Disable all mutating tools | false |
| IMAP_HOST | No | Proton Mail Bridge host | 127.0.0.1 |
| IMAP_PORT | No | Bridge IMAP port | 1143 |
| IMAP_SECURE | No | Use TLS | false |
| IMAP_PASSWORD | No | Bridge password (falls back to SMTP password) | |
| IMAP_USERNAME | No | Bridge username (falls back to SMTP username) | |
| PROTONMAIL_HOST | No | SMTP host | smtp.protonmail.ch |
| PROTONMAIL_PORT | No | SMTP port | 587 |
| PROTONMAIL_SECURE | No | Use TLS (true for port 465) | false |
| ALLOW_EMPTY_FOLDER | No | Register the empty_folder tool (not recommended) | false |
| PROTONMAIL_PASSWORD | Yes | Your SMTP password (not your login password) | |
| PROTONMAIL_USERNAME | Yes | Your Proton Mail email address | |
| ALLOW_FILE_DOWNLOAD_DIR | No | Allowlist directory enabling download_attachment.saveTo | |
| RESTRICT_OUTBOUND_TO_SELF | No | Lock the send-family tools to self-sends only | false |
Capabilities
Server capabilities have not been inspected yet.
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
No tools | |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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