Sparklight (Cable One) Settings and Support Guide

A handy reference guide to Sparklight ISP email, account log in, settings, and support. Cable One has been using the Sparklight brand since 2019, but the company name is still Cable One Inc.

check your sparklight ( email

Log into your Sparklight (Cable One) email:

Email settings for Sparklight (Cable One):

Username Your email address (including the @ portion)
SMTP server Server:
Port: 465
Security type (if prompted): SSL
IMAP server Server:
Port: 993
Security type (if prompted): SSL
POP server Server:
Port: 995
Security type (if prompted): SSL

Set up your email client for Sparklight (

To set up Sparklight email on your iPhone, Android, or other client, use one of the handy guides:

How do I check my Sparklight/Cable One email?

There are two ways to check your free email account provided by Sparklight. You can check it online with a web browser - also known as webmail - or use an email application on your phone, tablet, or computer.

You can use either one, or both. You'll always have access to all of your email. To use Sparklight webmail, use the link above. To use an email client, use the SMTP and IMAP or POP server settings listed above.

How do I set up Sparklight/Cable One email on iPhone or Android?

You can check your Sparklight ( email with the default Mail app on iPhone, or any client client on Android (including Gmail).

To do so, you will need the server settings that are listed above. There are two server addresses you need: SMTP and either POP or IMAP. SMTP is also known as the outgoing server, and is the server used to send mail.

For receiving email, you use either the IMAP or POP server. IMAP is the more advanced option: it leaves a copy of the mail on the server, which lets you check your email from multiple devices. If you use POP on your iPhone and Android phone, the mail will be downloaded to your phone and won't be available to other devices. For this reason, you should choose IMAP unless you have a reason to do otherwise.

Once you have the mail server settings above written down, use one of the guides listed above to complete your Sparklight email setup on your phone.

pay your sparklight bill

Here's every way that you can pay your residential Sparklight bill online.

sparklight modem information

If you need to log into your modem to change your WiFi password, the credentials will depend on the type of modem you have. Read this guide to learn more about how to log into your Sparklight modem.

Can you use you own modem with Sparklight?

Yes you can! Sparklight charges residential customers a fee to lease a modem. Depending on your internet package, you may be able to avoid that fee by using your own modem instead.

Sparklight internet uses cable technology, and you will need a DOCSIS 3.0 or DOCSIS 3.1 cable modem if you want to use your own.

DOCSIS 3.0 modems have a feature called channel bonding to increase speeds. If you have Sparklight’s lowest tier 100 Mbps plan, you can get away with 8x4 bonding. If you have the highest tier 1,000 Mbps plan, look for a modem with 32x8 bonding.

If you have a modem lying around from another provider, you can always plug it in to see if it works, but be aware that DSL modems aren’t compatible with Sparklight. But even if you have to buy one, you can usually quickly recoup the cost and save money in the long run. For example, a Netgear DOCSIS modem with 300 Mbps speeds will run you about $55.

You can refer to Sparklight’s list of approved modems, but in theory, any modem that supports the required DOCSIS technology should work.

Where can I buy a Sparklight-approved modem?

If you specifically want a Sparklight-approved modem, check their list of supported modems.

However, any modem from a quality brand like Arris, Motorola, or Netgear that has the required specifications and speed rating should work well for you.

Top-rated DOCSIS 3.0 modems on Amazon

What is the difference between a modem and a router?

Modems are also known as gateways, and may also have dual functionality as a WiFi router. A router and modem aren’t the same thing. A modem provides connectivity to your internet service provider, while a router distributes that internet connection to the devices in your home over WiFi or ethernet. Many of the modems on the Sparklight-approved list are dual-functionality and include WiFi capability, but many do not.

If you want to upgrade your WiFi, you don’t have to replace your modem. Simply purchase any WiFi router that you want, and plug it into an ethernet port on your modem. If your modem includes WiFi functionality, log into the modem using the admin credentials and turn off the WiFI antenna. You can then switch to the improved WiFi service provided by your new router.

Which WiFi router should I use with Sparklight (Cable One) internet?

You can use any WiFi router with Sparklight by plugging it into the ethernet port of your modem. (The ethernet port will supply internet connectivity to the router.) The router doesn’t need to be Sparklight-approved.

There are a huge selection and variety of routers available. Check the various review sites for advice about which is best for your situation. You can also start by browsing the top-reviewed routers on Amazon.

Top-rated WiFi routers on Amazon

Which DNS servers should I use with Sparklight internet?

You can use any public DNS servers that you like. In fact, it’s often a good to not use the DNS provided by your internet service provider, because it’s a common practice for ISPs to use their DNS service to inject ads.

Which public DNS service should you use? There are several to choose from. Another benefit is that many of these services provide you with additional security blocking access to known malware sites.

sparklight and outage check

Is Sparklight (Cable One) currently down?

If you’ve rebooted your router and modem and you still can’t access your Sparklight services, you can check Down Detector and Twitter to see if other Sparklight customers are reporting problems:

sparklight customer support phone numbers

Sparklight Email FAQs

What is the attachment size limit for Sparklight?

The maximum size of attachments with your Sparklight email is 18 megabytes (MB).

This limit is the total file size of all attachments on one email. If you need to send multiple files that add up to more than 18 MB, try sending one attachment per email, or compress the files. In Windows, right click the file, select Send to, and then click Compressed (zipped) folder.

Keep in mind that some spam systems filter out .zip files. Another alternative is to send your files with a cloud service such as iCloud, Dropbox, or Firefox Send.

What is the inbox size limit for Sparklight?

The total mailbox size of your Sparklight (Cable One) email account is 20 GB. That’s the cumulative size of all the subfolders, such as the inbox and sent folders.

What is the hostname for Sparklight email?

If you are setting up an email program to access your Sparklight email and it is asking for your server hostname, it is usually referring to the incoming server hostname. For both IMAP and POP, the hostname is Use port 993 for IMAP and port 995 for POP. Use SSL for both.

You can use either the IMAP or POP server, but IMAP is more modern and has more features. It will leave a copy of the email on the server, which means you could set up an email program on both your laptop and your phone, and retain access to all of your emails. With POP, the default behavior is for your email program to download your email and remove it from the server, making it accessible on only that device.

Why can't I log into my Sparklight email?

If you can’t access your Sparklight email, there are a few possible reasons why.

First, check to see if you have internet access. You can use the speed test and also check if there is an outage reported.

Another possibility is that you email accounts are marked inactive if they haven’t been accessed in 90 days. If that’s the case, you will need to reactivate your account. Follow these directions to learn how.

Yet other possibilities are that you’ve hit the sending limits for your account or have been flagged for sending spam.

The last thing to try is to reset your password.

How do I transfer my Sparklight (Cable One) email to Gmail?

There’s a two-step process if you want to transfer your Sparklight email to Gmail. First, you’ll want to do a bulk import of all your emails and contacts. Next, set up Gmail to fetch all any new emails that are received.

In Gmail, click on the gear icon and then click Settings. Follow the prompts to set up the import, using the IMAP email settings listed above.

After you've done the initial import, configure Check email from other accounts, which is in the same settings menu. This will set up Gmail to fetch new emails from your Sparklight account.

You can read more at the Gmail Support page.

How do I set up email forwarding on Sparklight?

To set up email forwarding:

  1. Use Webmail to log into your Sparklight account.
  2. Once logged in, select Preferences.
  3. Under Receiving Messages, enter the address of the inbox you want to forward in the Forward a copy to field.
  4. Save your changes.

Can I keep my email address if I cancel Sparklight?

No. You will lose access to your Sparklight email when you discontinue your service. To retain your email history and contacts, use an email client such as Gmail to import your old messages. You should also set up a new email service, set up email forwarding to copy your new Sparklight emails to your new service, and then notify people on your contact list about your new email address.

It's a good idea to do this well ahead of time before cancelling your Sparklight service. While your email access may not be discontinued immediately after you send your cancellation notice, you will lose access shortly after.

For an example of how to do this, check out the "How do I transfer my Sparklight email to Gmail?" answer above.