ProtonMail MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| PORT | No | HTTP transport port | 3000 |
| DEBUG | No | Enable debug logging | false |
| PROTONMAIL_IMAP_TLS | No | Enable TLS for IMAP | false |
| PROTONMAIL_PASSWORD | Yes | Proton Bridge password (not your login password) | |
| PROTONMAIL_USERNAME | Yes | Your ProtonMail email address | |
| PROTONMAIL_IMAP_HOST | No | IMAP host (Proton Bridge) | 127.0.0.1 |
| PROTONMAIL_IMAP_PORT | No | IMAP port (Proton Bridge) | 1143 |
| PROTONMAIL_SMTP_HOST | No | SMTP server host | smtp.protonmail.ch |
| PROTONMAIL_SMTP_PORT | No | SMTP server port | 587 |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| send_emailA | Send an email via ProtonMail SMTP with support for CC, BCC, HTML, priority, and attachments |
| send_test_emailA | Send a quick test email to verify SMTP is working |
| get_emailsA | Fetch emails from a folder with pagination |
| get_email_by_idA | Get a specific email by its ID with full body and headers |
| get_attachmentA | Download a specific attachment from an email |
| search_emailsA | Search emails with advanced filters across from, to, subject, dates, and flags |
| mark_email_readB | Mark an email as read or unread |
| star_emailA | Star or unstar an email |
| move_emailC | Move an email to a different folder |
| delete_emailA | Delete an email. Moves to Trash first; permanently deletes only if already in Trash. |
| get_foldersA | List all email folders with message counts |
| sync_foldersA | Force a refresh of the folder list from the IMAP server |
| create_draftB | Create a new draft email in the Drafts folder |
| update_draftB | Update an existing draft by replacing it with new content |
| delete_draftB | Delete a draft email |
| send_draftA | Send an existing draft via SMTP and remove it from Drafts |
| get_connection_statusA | Check the current SMTP and IMAP connection status |
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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