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‎README.md‎

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@@ -63,36 +63,36 @@ You can also configure the email server using environment variables, which is pa
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#### Available Environment Variables
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| Variable | Description | Default | Required |
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| --------------------------------------------- | ------------------------------------------------- | ------------- | -------- |
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| `MCP_EMAIL_SERVER_ACCOUNT_NAME` | Account identifier | `"default"` | No |
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| `MCP_EMAIL_SERVER_FULL_NAME` | Display name | Email prefix | No |
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| `MCP_EMAIL_SERVER_EMAIL_ADDRESS` | Email address | - | Yes |
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| `MCP_EMAIL_SERVER_USER_NAME` | Login username | Same as email | No |
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| `MCP_EMAIL_SERVER_PASSWORD` | Email password | - | Yes |
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| `MCP_EMAIL_SERVER_IMAP_HOST` | IMAP server host | - | Yes |
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| `MCP_EMAIL_SERVER_IMAP_PORT` | IMAP server port | `993` | No |
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| `MCP_EMAIL_SERVER_IMAP_SECURITY` | IMAP connection security: `tls`, `starttls`, or `none` | `tls` | No |
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| `MCP_EMAIL_SERVER_IMAP_VERIFY_SSL` | Verify IMAP SSL certificates | `true` | No |
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| `MCP_EMAIL_SERVER_SMTP_HOST` | SMTP server host | - | Yes |
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| `MCP_EMAIL_SERVER_SMTP_PORT` | SMTP server port | `465` | No |
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| `MCP_EMAIL_SERVER_SMTP_SECURITY` | SMTP connection security: `tls`, `starttls`, or `none` | `tls` | No |
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| `MCP_EMAIL_SERVER_SMTP_VERIFY_SSL` | Verify SMTP SSL certificates | `true` | No |
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| `MCP_EMAIL_SERVER_ENABLE_ATTACHMENT_DOWNLOAD` | Enable attachment download | `false` | No |
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| `MCP_EMAIL_SERVER_SAVE_TO_SENT` | Save sent emails to IMAP Sent folder | `true` | No |
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| `MCP_EMAIL_SERVER_SENT_FOLDER_NAME` | Custom Sent folder name (auto-detect if not set) | - | No |
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| Variable | Description | Default | Required |
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| --------------------------------------------- | ------------------------------------------------------ | ------------- | -------- |
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| `MCP_EMAIL_SERVER_ACCOUNT_NAME` | Account identifier | `"default"` | No |
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| `MCP_EMAIL_SERVER_FULL_NAME` | Display name | Email prefix | No |
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| `MCP_EMAIL_SERVER_EMAIL_ADDRESS` | Email address | - | Yes |
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| `MCP_EMAIL_SERVER_USER_NAME` | Login username | Same as email | No |
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| `MCP_EMAIL_SERVER_PASSWORD` | Email password | - | Yes |
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| `MCP_EMAIL_SERVER_IMAP_HOST` | IMAP server host | - | Yes |
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| `MCP_EMAIL_SERVER_IMAP_PORT` | IMAP server port | `993` | No |
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| `MCP_EMAIL_SERVER_IMAP_SECURITY` | IMAP connection security: `tls`, `starttls`, or `none` | `tls` | No |
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| `MCP_EMAIL_SERVER_IMAP_VERIFY_SSL` | Verify IMAP SSL certificates | `true` | No |
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| `MCP_EMAIL_SERVER_SMTP_HOST` | SMTP server host | - | Yes |
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| `MCP_EMAIL_SERVER_SMTP_PORT` | SMTP server port | `465` | No |
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| `MCP_EMAIL_SERVER_SMTP_SECURITY` | SMTP connection security: `tls`, `starttls`, or `none` | `tls` | No |
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| `MCP_EMAIL_SERVER_SMTP_VERIFY_SSL` | Verify SMTP SSL certificates | `true` | No |
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| `MCP_EMAIL_SERVER_ENABLE_ATTACHMENT_DOWNLOAD` | Enable attachment download | `false` | No |
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| `MCP_EMAIL_SERVER_SAVE_TO_SENT` | Save sent emails to IMAP Sent folder | `true` | No |
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| `MCP_EMAIL_SERVER_SENT_FOLDER_NAME` | Custom Sent folder name (auto-detect if not set) | - | No |
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> **Deprecated:** `MCP_EMAIL_SERVER_IMAP_SSL`, `MCP_EMAIL_SERVER_SMTP_SSL`, and `MCP_EMAIL_SERVER_SMTP_START_SSL` still work for backward compatibility but are superseded by the `*_SECURITY` variables above.
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#### Connection Security Modes
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The `security` field (or `*_SECURITY` env var) controls how the connection to the mail server is encrypted, per [RFC 8314](https://tools.ietf.org/html/rfc8314):
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| Mode | Description | IMAP Port | SMTP Port |
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| ---------- | -------------------------------------------------------- | --------- | --------- |
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| `tls` | **Implicit TLS** — encrypted from the first byte | 993 | 465 |
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| `starttls` | **STARTTLS** — connect plaintext, then upgrade to TLS | 143 | 587 |
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| `none` | **No encryption** — plaintext only (not recommended) | 143 | 25 |
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| Mode | Description | IMAP Port | SMTP Port |
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| ---------- | ----------------------------------------------------- | --------- | --------- |
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| `tls` | **Implicit TLS** — encrypted from the first byte | 993 | 465 |
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| `starttls` | **STARTTLS** — connect plaintext, then upgrade to TLS | 143 | 587 |
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| `none` | **No encryption** — plaintext only (not recommended) | 143 | 25 |
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### Enabling Attachment Downloads
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‎mcp_email_server/config.py‎

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@@ -233,7 +233,9 @@ def parse_bool(value: str | None, default: bool = True) -> bool:
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return default
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return value.lower() in ("true", "1", "yes", "on")
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def parse_security(value: str | None, default: ConnectionSecurity = ConnectionSecurity.TLS) -> ConnectionSecurity:
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def parse_security(
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value: str | None, default: ConnectionSecurity = ConnectionSecurity.TLS
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) -> ConnectionSecurity:
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if value is None:
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return default
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try:

‎tests/test_email_attachments.py‎

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@@ -246,7 +246,6 @@ async def test_download_attachment_default_mailbox(self, email_client, tmp_path)
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@pytest.mark.asyncio
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async def test_download_attachment_custom_mailbox(self, email_client, tmp_path):
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"""Test download_attachment with custom mailbox parameter."""
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import asyncio
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save_path = str(tmp_path / "attachment.pdf")
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@pytest.mark.asyncio
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async def test_download_attachment_special_folder(self, email_client, tmp_path):
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"""Test download_attachment with special folder like [Gmail]/Sent Mail."""
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import asyncio
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save_path = str(tmp_path / "attachment.pdf")
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