20181228 - RESOLVED - Hosted Exchange - Mailbox Connectivity Issue

[RESOLVED] We are currently experiencing a significant outage to our Hosted Exchange environment.

Summary of Issue: 
Currently we're experiencing connectivity issues affecting multiple domains. Our Operations team is actively working to restore the services as soon as possible. 

Business Impact: 
Users may be unable to connect to their mailboxes using Outlook and OWA. 

Technical Details
Our System Administrators have identified the issue and continue to work towards resolution. We will provide updates as they become available.

  • 2018/12/28 09:00 CT:  RESOLVED - We have restored connection to mailboxes for all of the affected domains. Some users may need to re-open their mail clients and run ipconfig /flushdns command to clear DNS cache on the local workstations. Some messages may be delivered with a delay. All users should able to connect to their mailboxes normally.
    Please contact us if you continue to experience any problems.

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.