IamMacomb's profile

New Poster

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5 Messages

Thursday, January 23rd, 2025 7:43 PM

Unable to Access Comcast Email Accounts using Outlook

I just noticed this. I have tried un-installing and installing and still unable to access email. I am able to access email via the website. 

i have tried uninstalling and installing the account on Outlook, Access to third-party email programs is enabled.

Whats going on?

Official Employee

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2.3K Messages

10 days ago

 

IamMacomb

Thanks for reaching out! It sounds like you've taken some great troubleshooting steps already, and I appreciate you sharing those details. Since you’re able to access your email via the website, it confirms that your account is active and functioning correctly. The issue may be with how Outlook is set up to access your email.

 

Here are a few steps to try:

 

1. Verify Your Email Settings: Double-check that you’ve entered the correct incoming and outgoing mail server settings. These settings can be found on the Xfinity email support page under third-party email setup.

- Incoming Mail Server: imap.comcast.net (Port 993, SSL enabled)
- Outgoing Mail Server: smtp.comcast.net (Port 587, SSL/TLS enabled)


2. Authentication: Ensure that your full email address and password are entered correctly, and make sure "Use same settings as my incoming mail server" is checked for outgoing mail.

 

3. Clear Cache: If you’ve recently changed your password or made account updates, clear the cache in Outlook before re-adding your account.

 

If these steps don’t resolve the issue, let us know! 

 

New Poster

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4 Messages

Notice I have tried two other email readers besides outlook.  Thunderbird, Mailbird and Outlook don't work.  Do you still think its the third party reader?

New Poster

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4 Messages

Here is another thing I tried.  I am unable to login to Comcast email using Thunderbird or Outlook.  Tried login with Thunderbird using a VPN and was Successful. Tried VPN using Outlook and got warning  "Server certificate could not be verified.  I clicked yes to "do you want to continue with this server" and was Successful in connecting to comcast email.

Official Employee

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2.3K Messages

tyrendo

Thanks for sharing what you've tried. It sounds like there may be a security or authentication issue affecting your ability to log in without a VPN. The fact that using a VPN allowed Thunderbird to connect suggests there could be an issue with how your connection is being recognized, possibly related to IP reputation or security filtering.

 

For Outlook, the certificate warning could indicate that the mail server settings need to be updated or that there's a mismatch in security protocols. We recommend checking that your incoming and outgoing server settings match Comcast’s recommended settings and ensuring that SSL/TLS is enabled.

 

If the issue persists without a VPN, it may help to clear saved credentials, update your email client to the latest version, and try logging in again. Let us know if you need further guidance!

 
 
 
 
 
I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

New Poster

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4 Messages

8 days ago

I am having the same problem.  I tried Thunderbird and unable to access comcast emails.  Also have Outlook 2024 and it doesn't work.  Tried to install Mailbird and won't install, says invalid credential or IP is on a block list.  Spent four hours with 3 levels of tech support at comcast and just got the run-around.

New Poster

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5 Messages

Are you on a public/work  wifi? I tried disconnecting from my work internet/wifi and then it started to work.

i also switched back using Edison Mail rather than Outlook.

New Poster

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5 Messages

@IamMacomb

or you can use a VPN

3 Messages

7 days ago

This worked for me on my iphone using Outlook.  I was having the same trouble as everyone here.

Disconnect from home wifi (I used cellular connection)

Email Address:  ********@comcast.net

Display Name:  Blank

Description:  Blank

IMAP Hostname:  imap.comcast.net

IMAP Port:  993

Port Security:  SSL

IMAP Username:  ********@comcast.net

IMAP Password:  *****************

SMTP Hostname:  smtp.comcast.net

SMTP Port:  465

Port Security:  SSL

SMTP Username:  ********@comcast.net

SMTP Password:  *****************

Contributor

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19 Messages

3 days ago

My Outlook email on my Comcast.net account has been mostly refusing to send for the past week. I had no problems receiving.

This morning, the emails in my outbox were accepted until late morning, when the same BS started again. The emails I sent are still sitting on my outbox.

How come it works for a while and then comcast stops accepting sent mail?????

Contributor

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19 Messages

This morning, again, my email was sent without problems until around 10am, when I started getting this. ESMTP server temporarily not available is a Comcast issue. Is it ever going to be fixed??

                                                                                                                           [Removed image: "Personal Information"]

(edited)

Official Employee

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1.8K Messages

 

fred2179 Can you confirm that you have attempted these steps to resolve the issue?

Here are a few steps to try:

 

1. Verify Your Email Settings: Double-check that you’ve entered the correct incoming and outgoing mail server settings. These settings can be found on the Xfinity email support page under third-party email setup.

- Incoming Mail Server: imap.comcast.net (Port 993, SSL enabled)
- Outgoing Mail Server: smtp.comcast.net (Port 587, SSL/TLS enabled)


2. Authentication: Ensure that your full email address and password are entered correctly, and make sure "Use same settings as my incoming mail server" is checked for outgoing mail.

 

3. Clear Cache: If you’ve recently changed your password or made account updates, clear the cache in Outlook before re-adding your account.

 

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick
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