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Cox Email Server Settings

Last Updated: Mon, 03 Apr 2017 > Related Articles

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Learn about the Cox Email server settings for IMAP, POP, and SMTP so you can send and receive email from your computer and mobile devices.


Most third-party email clients available on computers and other devices can be configured to send and receive Cox Email. To help you get the most out of your Cox Email, Cox provides the settings and server names. Let’s get started by selecting one of the following topics.

Before you try to set up a Cox Email account in an email client, make sure you've opted in first. See Adding Cox Email to an Existing Digital Identity to learn how to opt in to Cox Email.

IMAP Server Settings 

Use the following IMAP server settings information to set up your Cox Email on most devices and email client programs.


  • Your user name and password are the same as the ones you use to access your email account.
  • Cox does not recommend the use of unsecure ports.
Your NameYour Name
Email Addressyouremail@cox.net
User NameThe first part of your Cox email address, without @cox.net
PasswordEmail account password
Account TypeIMAP
Incoming Mail Settings
  • Server name: imap.cox.net
  • Port number: 993 with SSL enabled and the authentication box checked, if available
Outgoing Mail Settings
  • Server name: smtp.cox.net
  • Check the Port number and use one of the following options:
    • 587 with TLS enabled
    • 465 with SSL enabled and the authentication box checked, if available
  • Yes
  • Cox user name and password required

What is IMAP and Why Should I Use It? 

IMAP servers allow users to view email messages via an email client or application, such as Outlook, Apple Mail, Windows Mail, or others. IMAP offers the following features that POP does not.

  • Support for simultaneous multiple access. New email is available and accessible from any client device at any time.
  • Partial fetch, only the sender and header information is downloaded, which leaves more storage on the device.
  • Two-way communication between client devices and the email server. This increases stability of the server.
  • Messages can be downloaded to the client device, if needed.
  • Actions to a message such as read or replied to, will be seen on any client device accessing the same mailbox.
  • The server can be searched for specific messages based on different criteria. This allows the user to download only the messages they want.

POP or POP3 Server Settings 

Use the following POP server settings information to set up your Cox.net email on most devices and email client programs.


  • Using POP settings may cause issues with syncing email across all your devices. If you use POP settings, you can set the email client to Leave Messages on Server.
  • When using the setting Leave Messages on Server, Cox recommends that you regularly check your mailbox size to ensure you don’t reach your mailbox storage limit. See the section regarding Cox Email at www.cox.com/aboutus/policies/speeds-and-data-plans.html for more information.
Cox Server NamesPort Settings
pop.cox.netIncoming POP Port: 995

Outgoing SMTP Port:

  • 587 with TLS enabled
  • 465 with SSL enabled and check the authentication box, if available

Port 143 is no longer available to be used for Cox Email. If you are connected through Port 143, you must manually update your server settings to remove Port 143. Refer to Updating Your Email Server Settings

Switching from POP to IMAP 

To switch your POP server settings to IMAP in your email client programs, complete the following steps.

Note: Cox recommends that you back up any important email that you want to save before completing these steps.

  1. In your email client program, set up a new IMAP email account using the same email address associated with the POP settings.
  2. Delete or disable the POP email account.

If your email doesn't appear in your new IMAP-configured email account, it may be due to one of the following reasons.

  • The setting Leave Messages on Server is not enabled in the POP-configured email account.
  • There is a configuration issue with IMAP or POP server settings.
  • Settings are applied to incoming email, such as a filter or mail forwarding.
  • Deliberate or accidental human action, or a compromised account.

Background Information 

The following acronyms are used to describe common email server settings.

IMAPThe Internet Message Access Protocol (IMAP) is an incoming server. IMAP allows you to view and synchronize incoming messages across multiple devices from your email client.
POP or POP3The Post Office Protocol (POP) is an incoming server. POP3 is POP version 3. You will either see POP or POP3 when configuring your email account(s). POP enables you to download messages from the email host location to an email client.
SMTPThe Simple Mail Transfer Protocol (SMTP) is the outgoing server. It sends messages from your email client to the host.
SSLSSL stands for Security Sockets Layer. It encrypts your information from would-be thieves as it is transmitted from one location to another, such as with email. Choosing to encrypt by checking the SSL box provides added security to your transmissions.
TLSTLS is Transport Layer Security. It encrypts your information from would-be thieves as it is transmitted from one location to another, such as with email. Choosing to encrypt by checking the TLS box provides added security to your transmissions.

Additional Support 

If you are interested in additional support with your devices and software in order to configure your email clients, please contact the manufacturer or Cox Tech Solutions may be able to assist. Visit www.cox.com/cts or call 877-TEC-SOLV (877-832-7658) for more information about Cox Tech Solutions' fee-based services. See Cox Tech Solutions for more information.

For additional resources to configure email client programs and mobile devices to send and receive Cox.net email, see Resources for Setting Up Cox.net Email and Supported Email Clients, Internet Browsers, and Operating Systems.

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