Validates an email address using an external email validation API.

This function checks the validity, deliverability, and other attributes of an email address.
It returns a detailed dictionary containing information about the email's format, domain,
and SMTP server.

Args:
    email (str): The email address to validate.

Returns:
    dict[str, Any]: A dictionary containing detailed validation results. The dictionary
    includes the following keys:
        - "email" (str): The email address being validated.
        - "autocorrect" (str): Suggested autocorrection if the email is invalid or malformed.
        - "deliverability" (str): The deliverability status of the email (e.g., "DELIVERABLE").
        - "quality_score" (str): A score representing the quality of the email address.
        - "is_valid_format" (dict): Whether the email is in a valid format.
            - "value" (bool): True if the format is valid, False otherwise.
            - "text" (str): A textual representation of the format validity (e.g., "TRUE").
        - "is_free_email" (dict): Whether the email is from a free email provider.
            - "value" (bool): True if the email is from a free provider, False otherwise.
            - "text" (str): A textual representation (e.g., "TRUE").
        - "is_disposable_email" (dict): Whether the email is from a disposable email service.
            - "value" (bool): True if the email is disposable, False otherwise.
            - "text" (str): A textual representation (e.g., "FALSE").
        - "is_role_email" (dict): Whether the email is a role-based email (e.g., "admin@domain.com").
            - "value" (bool): True if the email is role-based, False otherwise.
            - "text" (str): A textual representation (e.g., "FALSE").
        - "is_catchall_email" (dict): Whether the domain uses a catch-all email address.
            - "value" (bool): True if the domain is catch-all, False otherwise.
            - "text" (str): A textual representation (e.g., "FALSE").
        - "is_mx_found" (dict): Whether MX records are found for the email domain.
            - "value" (bool): True if MX records are found, False otherwise.
            - "text" (str): A textual representation (e.g., "TRUE").
        - "is_smtp_valid" (dict): Whether the SMTP server for the email domain is valid.
            - "value" (bool): True if the SMTP server is valid, False otherwise.
            - "text" (str): A textual representation (e.g., "TRUE").

Example:
    >>> await verify_email("thanos@snap.io")
    {
        "email": "thanos@snap.io",
        "autocorrect": "",
        "deliverability": "UNDELIVERABLE",
        "quality_score": "0.00",
        "is_valid_format": {
            "value": true,
            "text": "TRUE"
        },
        "is_free_email": {
            "value": false,
            "text": "FALSE"
        },
        "is_disposable_email": {
            "value": false,
            "text": "FALSE"
        },
        "is_role_email": {
            "value": false,
            "text": "FALSE"
        },
        "is_catchall_email": {
            "value": false,
            "text": "FALSE"
        },
        "is_mx_found": {
            "value": false,
            "text": "FALSE"
        },
        "is_smtp_valid": {
            "value": false,
            "text": "FALSE"
        }
    }
Raises:
    ValueError: If the API key is not found in the environment variables.
    requests.exceptions.HTTPError: If the API request fails (e.g., 4xx or 5xx error).
    Exception: For any other unexpected errors.