| We perform maintenance on the mail service systems to provide optimal performance and security. Maintenance sometimes causes downtime, but usually does not. |
| If we expect a maintenance event to cause downtime we will use reasonable efforts to post notice of the maintenance at least seven (7) days in advance. For example, if we have to remove a system element to perform maintenance, we will transfer the system to a redundant element to minimize downtime, but there will be some downtime while the system transfers to the redundant element. |
| If maintenance is urgently needed, we may not be able to give much, or any, advance notice; for example, we may need to install critical security updates or replace failed system components. Downtime resulting from maintenance is not included in our SLA. |