Below is the full text of their message:
3essentials maintenance notification for your Shared Hosting Server WEB28
This notification is to inform you of an SCHEDULED MAINTENANCE on 3Essentials hosting infrastructure which will impact you.
You are receiving this notification because you are a 3Essentials hosting customer with at least one domain hosted on a server for which we have scheduled maintenance. You may receive multiple copies if you have multiple domains or hosting plans on this server.
SERVER: Web28.3essentials.com
ESTIMATED MAINTENANCE WINDOWS:
1) Saturday 3/30/13 10pm - Sunday 3/31/13 10am EDT
2) Saturday 4/6/13 10pm - Sunday 4/7/13 10am EDT
Both windows may be considerably shorter if there are no unforeseen challenges with these activities.
DESCRIPTION: These maintenances include upgrades to WEB28's hardware and disk subsystems to improve performance and stability.
IMPACT ASSESSMENT:
- all services on web28 (web, database, mail, panel, mail) will be brought offline for some to all of the maintenance window.
- any inbound mail will be accepted and held at the incoming mailgateways until web28 is brought back online.
During the maintenance window updates will be posted to our SYSTEM STATUS area found inside the MyAccount pages at
http://www.3essentials.com/myaccount.asp