google.appengine.api.mail.MailMessageToMIMEMessage

Generates a MIMEMultipart message from a MailMessage protocol buffer.

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Main aliases

`google.appengine.api.mail.mail_message_to_mime_message`

google.appengine.api.mail.MailMessageToMIMEMessage(
    protocol_message
)

This function generates a complete MIMEMultipart email object from a MailMessage protocol buffer. The body fields are sent as individual alternatives if they are both present; otherwise, only one body part is sent.

Multiple entry email fields, such as 'To', 'Cc', and 'Bcc' are converted to a list of comma-separated email addresses.

Args
protocol_message	Message protocol buffer to convert to a MIMEMultipart message.

Returns
A MIMEMultipart message that represents the provided MailMessage.

Raises
InvalidAttachmentTypeError	If the file type of the attachment is invalid.