code: public OvhTaskPop domain_account_accountName_changePassword_POST(String domain, String accountName, String password) throws IOException {
  		String qPath = "/email/domain/{domain}/account/{accountName}/changePassword";
  		StringBuilder sb = path(qPath, domain, accountName);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "password", password);
  		String resp = exec(qPath, "POST", sb.toString(), o);
  		return convertTo(resp, OvhTaskPop.class);
  	}
docs: Change mailbox password (length : [9;30], no space at begin and end, no accent)
  
  REST: POST /email/domain/{domain}/account/{accountName}/changePassword
  @param password [required] New password
  @param domain [required] Name of your domain name
  @param accountName [required] Name of account