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Service Department's blog

We are currently investigating an outage to our data center.  Updates to follow as more information becomes available.


As of 11:18 AM CST all services have been restored and queued e-mails are being processed.

Microsoft has identified a “zero-day” vulnerability involving .TIFF files. This means that neither Microsoft nor the antivirus companies have been able to develop tools to address this vulnerability. Because this is a zero-day vulnerability, the only way to protect yourself is to exercise extreme caution when opening .TIFF files, no matter how they reach you—whether via e-mail, web sites, or any other means.  ETRN advises all its users to be very careful with .TIFF files.  Anti-virus and firewall protection applications may not stop this threat. Do not open any files with a filename ending in .tiff.

Subject: 09 September 2013 - Local Number Service Interruption - Our telephone provider is currently experiencing a service interruption affecting some local numbers.

Details: At this time, you may be unable to reach us via our local number (815-986-7309).  You may get a busy signal or other unexpected message when you try to call us via our local number.

Technical Details: Our telephone provider is currently experiencing a service interruption affecting some local numbers. One of their underlying carriers is experiencing an issue which is affecting some of our local numbers.

They are working with the carrier to get things back up and running ASAP.

At this time, you may get a busy signal when trying to call us via our local number.  Our Toll free number (866-271-3876) is operating normally.

Updates will be posted as they become available.


  • 20130909 14:46 - This interruption is now resolved according to our telephone provider, but we're continuing to monitor for any recurrence.

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

We Answer Your Questions: FAQ

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

A: The e-mail servers do not limit the size of individual e-mail attachments. The 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.