try {
					newUser.addIPMask(string);
					out.add(ReplacerUtils.jprintf("ip.added", env, IRCUserManagement.class));
					logger.info("'" + Adder.getName() +
							"' added ip '" + string + "' to '" +
							newUser.getName() + "'");
				} catch (DuplicateElementException e1) {
					out.add(ReplacerUtils.jprintf("ip.exists", env, IRCUserManagement.class));
				}
			}