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Comcast email not working: 6 Fixes

The email has come a long way from its beginnings in the 1960s. Email clients these days have many more features and are a lot easier to get up and running. However, just like everything tech, they also face issues from time to time.

In this article, we’re looking at why your Comcast email isn’t working and the solutions you can take to solve the problem. 


Why your Comcast email isn’t working?

There are several reasons why this might happen. Some of the most popular ones are as follows.

  • Internet connectivity issues.
  • Comcast servers experiencing problems.
  • Your IP may have been blacklisted for violating violating Comcast rules.
  • Incorrect email client configuration.

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How to fix this?

Here are a few solutions you can try out to fix these issues.

Check your network connection

The first thing you should do is to check your internet connection. If you’re using WiFi, check to ensure that you have an active internet connection; otherwise, try restarting the router. If you’re on mobile data, check to see if it’s enabled and whether you have good network coverage. 


Check Comcast servers

If your internet connection is fine, check if Comcast is facing any outages or not. You can refer to the Comcast website, their Twitter or use a third-party site like Downdetector to see if there’s a problem at Comcast’s end. If there is, there’s not much you can do other than sit back and let Comcast handle the situation. 


Check your email client

The next thing you should do is check if your email client is configured correctly and using the correct servers to send and receive emails. Checking your login credentials is also a good idea.


Delete browser data

If you’re using Comcast email in your browser, try deleting the browser data to see if that helps resolve the error.

Step 1: Type in chrome://settings/clearBrowserData in your browser’s address bar and hit Enter.

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Step 2: Select the cache and cookies options and ensure the Time range is set to All time. Click on the Clear now button to clear out all the data. 

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Now try restarting the browser, and your email should work fine. 

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Reset your browser

Resetting Chrome can fix random bugs and glitches with the browser. 

Step 1: Head over to chrome://settings/reset. Click on Restore settings to their original defaults.

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Step 2: Chrome will show you a warning prompt. Click on Reset Settings, and your browser will reset to default settings. 

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Now try restarting the browser, and your email should work just fine. 


Check for updates

If the issue is in Chrome itself, chances are developers might release an update to fix the problem. Regardless, you should always ensure you’ve got the latest version of the browser installed to avoid running into problems that could otherwise be avoided. 

Head over to chrome://settings/help and make sure you’re on the latest update. If you’re not, update immediately and try again. 

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Common Comcast Error Codes

Comcast has issued a series of error codes to make troubleshooting errors and life easier. Here are some of the most common ones.

  • ES000001: You’ve been blocked from sending emails to the Comcost network because you’re sending the email from a dynamic or residential IP within the Comcast domain. Subscribers aren’t allowed to send emails from email servers other than smtp.comcast.net.
  • ES000010: You’ve been blocked from sending emails to the Comcost network because you’re sending the email from a dynamic or residential IP within the Comcast domain. Your IP is classified as dynamic if the reverse DNS doesn’t comply with standard static naming conventions.
  • BL000001: The email you sent couldn’t be delivered because the sending IP address is listedn on Spamhaus Zen — a list of IPs previously detected as sending spam and containing dynamic IPs.
  • BL000010: Email couldn’t be delivered because the email provider is listed on the Cloudmark Sender Intelligence — a list containing a list of IPs known to send spam emails.
  • BL000011: Email couldn’t be sent because the sending IP is listed on Spamhaus Zen and Cloudmark Sender Intelligence.
  • BL000100: Email couldn’t be delivered, because the sending IP is listed on Return Path Repuation Network Blocklist.
  • BL000111: Email couldn’t be delivered because the sending IP is listed on Spamhaus Zen, Cloudmark Sender Intelligence and Return Path Repuation Network Blocklist.
  • DM000001: The email was rejected by Comcast email servers due to the sending domain’s DMARC policy.
  • RL000001: The sender has gone over the inbound email traffic rate limit.
  • RL000002: The sender has gone over the inbound email traffic rate limit.
  • RL000003: The sender has gone over the inbound email traffic rate limit.

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