20120428 - Scheduled Maintenance: Exchange Updates

Subject: 28 April 2012 Scheduled Maintenance: Exchange Updates


  • Scheduled start date and time: 04/28/2012 01:00 AM CT
  • Scheduled end date and time: 04/28/2012 05:00 AM CT
  • System(s) Affected: Exchange
  • Expected Impact: Starting during the maintenance window on April 28th, we will be upgrading your Exchange server to Service Pack 2. This upgrade will run over multiple nights as we upgrade each set of servers. The upgrades will require a reboot. Exchange services will be intermittently unavailable during this maintenance and email services will be down for up to 15 minutes when the reboot occurs.
  • Action required: ActiveSync users may experience issues during the upgrade process. If they find their devices are unable to connect during this upgrade process, they will need to go into the device settings and re-save their ActiveSync account details to force the devices to connect.

We appreciate your patience during this work and welcome any feedback. Thank you for being a ETRN customer. Please contact us if you have any questions.

We Answer Your Questions: FAQ

Q: What is the maximum e-mail attachment size?

A: The ETRN.com e-mail servers do not limit the size of individual e-mail attachments. The ETRN.com e-mail servers do impose a 400 MB maximum total message size limit. Individual customers can choose a smaller message size limit. We can also customize the handling of "over-sized" e-mails. Please contact us to discuss your specific needs. A couple of important facts:

1. Attachments are typically encoded in what is called Base64[1]. As a result, the actual length of MIME-compliant Base64-encoded binary data is usually about 137% of the original file size.

2. E-mails often contain both plain text and HTML components. This also increases the overall size of the e-mail.