Internet Service Provider


The Internet IP addresses for the CM/ECF mail servers were changed by the Administrative Office of the United States Courts. In most cases, the change will not affect receiving correspondence such as Notices of Electronic Filing (NEFs) from our court but we will continue to monitor bounced emails and contact individuals if their mail providers or Internet Service Providers (ISPs) need the new mail server addresses. In light of this change, please monitor your email spam folders to ensure correspondence from the court is not automatically flagged as spam or deleted. If correspondence is marked as spam, please contact your computer support staff, mail provider or Internet Service Provider (ISP) for help on white listing messages from the domain.

  • Does the change of mail server IP addresses only affect emails coming from or other emails as well?

    The new mail server IP address change affects all “” mail servers, and therefore they are not exclusive to the Central District of California.

  • What do we need to do with the IP addresses listed in the Court’s original notice dated August 14, 2013?

    Chances are you will not have to do anything with the IP addresses listed in the Court’s original notice.  However, if we receive a bounced email message from our attempts to send you Notices of Electronic Filing (NEFs) or other correspondence, we will contact you. At that time, you should request that your mail provider, mail administrator or Internet Service Provider (ISP) white list the IP addresses we will provide to you as soon as possible to ensure NEFs or other correspondence from the court are properly received.

  • What is an IP address?

    An IP address, also known as an “IP number” or simply an “IP,” is a code made up of numbers separated by three dots that identifies a particular computer on the Internet.  Every computer, whether it be a Web server or the stand-alone computer, requires an IP address to connect to the Internet.  IP addresses consist of four sets of numbers from 0 to 255, separated by three dots.  For example “” or “”

  • What is an e-mail white list?

    An e-mail white list is a list of IP addresses from which you, your mail provider, mail administrator or Internet Service Provider (ISP) will deem acceptable to receive e-mail.  When an IP address is added to your e-mail white list, e-mails originating from that IP address will appear in your Inbox and not be sent to the trash or spam folder.

  • Why were CM/ECF users instructed that there was an immediate need to add the new mail server IP addresses?

    The Administrative Office of the U.S. Courts moved the location of its CM/ECF Data Center, which impacts the delivery of Notices of Electronic Filing (NEFs) sent regarding activity in CM/ECF throughout the entire Court system.  The individual courts were notified after hours on August 13, 2013, and the information was forwarded to our district’s CM/ECF users as soon as possible.  The Central District will request that the Administrative Office provide more timely notice of these kinds of technical changes in the future.

  • Why did I receive this email?

    You are a registered recipient of E-Notifications from this court.

  • Is the “Immediate Need to Change Internet Service Provider Address” notice a legitimate email from the court?

    Yes, this email was sent by the U. S. District Court for the Central District of California on August 14, 2013.