jodd-mail/src/main/java/jodd/mail/ReceivedEmail.java
protected static boolean parseInline(final Part part) throws MessagingException {
		if (part instanceof MimePart) {
			final String dispositionId = part.getDisposition();
			return dispositionId != null && dispositionId.equalsIgnoreCase("inline");
		}
		return false;
	}
protected static boolean parseInline(final Part part) throws MessagingException {
		if (part instanceof MimePart) {
			final String dispositionId = part.getDisposition();
			return dispositionId != null && dispositionId.equalsIgnoreCase("inline");
		}
		return false;
	}
Returns {@code true} if the {@link Part} is inline.

@param part {@link Part} to parse.
@return {@code true} if the {@link Part} is inline.
@throws MessagingException if there is a failure.