我可以在 from_name 和 from_email 字段中使用 merge_tags 吗?

Can I use merge_tags in the from_name and from_email fields?

是否可以为每个收件人自定义 from_name 和 from_email?我试过这样做但似乎没有用:

message = {
    'auto_html': False,
    'auto_text': False,
    'bcc_address': None,
    'to': {'email': recipient['email'], 'type': 'to'},
    'from_name': "*|FROM_NAME|*",
    'from_email': "*|FROM_EMAIL|*",
    'subject': '*|SUBJECT|*',
    'text': '*|BODY_TEXT|*',
    'html': '*|BODY_HTML|*',
    'google_analytics_campaign': None,
    'google_analytics_domains': [],
    'headers': {},
    'important': False,
    'inline_css': None,
    'merge': True,
    'global_merge_vars': [],
    'merge_vars': {
            'rcpt': recipient['email'],
            'vars': [
                {'name': 'SUBJECT', 'content': result["subject"]},
                {'name': 'BODY_TEXT', 'content': result["text"]},
                {'name': 'BODY_HTML', 'content': result["html"]},
                {'name': 'FROM_NAME', 'content': result['from']['name']},
                {'name': 'FROM_EMAIL', 'content': result['from']['email']}
            ]
        },
    'preserve_recipients': False,
    'recipient_metadata': [],
    'return_path_domain': None,
    'signing_domain': None,
    'subaccount': "account_id,
    'tags': [],
    'track_clicks': False,
    'track_opens': False,
    'tracking_domain': None,
    'url_strip_qs': None,
    'view_content_link': None,
    'metadata': {}
}

这是在 Python 中完成的,我正在打电话给 messages.send。我收到错误 mandrill.ValidationError: Validation error: {"message":{"from_email":"An email address must contain a single @"}}

来自Mandrill Knowledge Base

Currently, merge tags are supported in the from name, subject line, and body of an email only.