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user_vn3lzc
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4 Messages

Saturday, December 6th, 2025 4:55 PM

Imap email client no longer syncing

My Imap email client no longer syncing incoming mail.  This is a 'Public chat post so that I can get a chat icon to DM this issue to Xfinity Email Support.  I have spent several hours and several days using the chat bot and phone support to no avail.  My email will occassionally sync incoming email then I get sync errors again.  The Xfinity webmail is poor client interface compared to Outlook and only a bandaid.  I am fairly certain that there may be others dealing with the same issue.  Please provide a DM link so this issue can get escalated.  Thank you.

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11 hours ago

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XfinityJoe

Official Employee

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1.1K Messages

4 days ago

Thank you for reaching out @user_vn3lzc. Are you able to access your email at 

https://www.xfinity.com/email

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user_vn3lzc

Visitor

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4 Messages

Yes, I can access my email at https://www.xfinity.com/email.

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2 days ago

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XfinityEva

Official Employee

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2.1K Messages

Thank you, here are a few additional tips to keep in mind: 

 

  • If you're using another program or website to get your email, make sure it's not set to delete your email messages from the server automatically.
  • There's a limit on the size of email messages.
    • If someone tries to send large videos or photos, you may not get them.
    • Our servers support messages up to 25 MB.
  • Check your spam settings.
    • You can customize them to deliver it to a spam folder.
  • While you're in Mail Settings, make sure you haven't turned on email forwarding.
  • If you're missing a particular message, you can search your Inbox.

Full article at: https://www.xfinity.com/support/articles/top-tips-for-xfinity-connect

 

If you are still experiencing issues please send us a direct message with your full name and service address to get started. 

 

To send a direct message: 

 

Make sure you are signed in here in the Xfinity Forum. Click "Sign In" if necessary

  • Click the "Direct Message" icon (square chat icon in the upper right corner of your screen next to the bell icon)
  • Click the "New message" (pencil and paper) icon
  • Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line
  • Type your message in the text area near the bottom of the window
  • Press Enter to send it
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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2 days ago

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user_vn3lzc

Visitor

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4 Messages

Thank you Eva!  I will send the message as directed.

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2 days ago

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XfinityRichard

Official Employee

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2.7K Messages

Thank you, @user_vn3lzc for your time and patience. Your imap.comcast.net connection error (0x800CCC0E) in Outlook, while SMTP works, usually points to incorrect SSL/TLS setting (993 for IMAP, needing a fresh password after security changes, or a Comcast setting like Third party access being off, which you can fix in web you can fix in Xfinity webmail settings. Check IMAP is enabled in webmail, verify your Outlook ports (993/SSL for IMAP, 587/STARTTLS for SMTP), and ensure you're using an app-specific password if 2FA is on, as Comcast sometimes blocks direct logins.-Richard

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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2 days ago

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user_vn3lzc

Visitor

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4 Messages

Hi Richard,

I confirmed my port settings.  Confirmed 3rd party apps allowed.  Reset my Xfinity password.  Turned off 2FA to see if that helped but still cannot connect to imap.comcast.com using Outlook (3rd party client) on WiFi / home network.  Outlook doesn't work on my iPhone either UNLESS I disconnect from my WiFi network at home.  When I'm using my cellular network connection my iPhone Outlook IMAP client syncs up my Comcast email.  When I enable WiFi again it won't sync.  Do you have an email firewall?  What are the logs showing for connections that are refused?  Just curious.

Thanks,
MI

aka  @user_vn3lzc

(edited)

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16 hours ago

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Again

Expert

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33.1K Messages

3 days ago

@user_vn3lzc 

My Imap email client no longer syncing incoming mail.  This is a 'Public chat post so that I can get a chat icon to DM this issue to Xfinity Email Support.  I have spent several hours and several days using the chat bot and phone support to no avail.  My email will occassionally sync incoming email then I get sync errors again.  The Xfinity webmail is poor client interface compared to Outlook and only a bandaid.  I am fairly certain that there may be others dealing with the same issue.  Please provide a DM link so this issue can get escalated.  Thank you.

Direct messaging isn't allowed until an official employee asks you to do so; it's against the Forum Guidelines and the Acceptable Use Policy to send anyone an unrequested DM/PM.  Also note, if you do send one without being asked to do so, it could possibly be ignored.
  
 Please always post your issue in public in the proper forum so that it can be addressed either by other customers or by an Official Employee. 

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user_8nli8o

Visitor

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2 Messages

3 days ago

I am having the same problem and have not been able to resolve it after multiple contact attempts. They just keep telling me the same steps over and over again that do not work to fix the issue. I can access the webmail, other email providers work fine on my phone so the issue is definitely Comcast syncing and using IMAP.

(edited)

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XfinityJeff

Official Employee

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441 Messages

Good morning @user_8nli8o, and thanks for posting your issue to the Xfinity forums, I hope this message finds you well. I am sorry to hear that you are having issues with the email on your phone, but you have come to the right place for support. Have you tried deleting the email account from the phone and then adding it back on?

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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3 days ago

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user_8nli8o

Visitor

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2 Messages

yes, I have tried all the normal suggestions. deleting, restarting, ensuring all the ports are correct (multiple times over different chat sessions) and nothing has worked. 

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3 days ago

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XfinityEricB

Official Employee

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2.8K Messages

 

user_8nli8o Let's take a closer look into the issue with your specific email on the phone.

Can you send us a direct message with your full name, name of account holder (if different), and service address please?

To send a "Direct Message" to Xfinity Support:

Click "Sign In" If necessary

Click the "Direct Messaging" icon (speech bubble)

Click the "New message" (pencil and paper) icon

The "To:" line prompts you to "Type the name of a person".

Instead, type "Xfinity Support" there

As you are typing a drop-down list appears. Select "Xfinity Support" from that list

An "Xfinity Support" graphic replaces the "To:" line

Type your message in the text area near the bottom of the window

Press Enter to send it

 

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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Reply

3 days ago

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user_739754

Visitor

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2 Messages

I am having the same issues as the above on all IOS products 

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2 days ago

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user_739754

Visitor

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2 Messages

With pop up from IPhone 16 which says COMCAST is currently unavailable 

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2 days ago

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kvolner

Visitor

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2 Messages

24 hours ago

Comcast emails stopped syncing yesterday.  This is happening on both the phone using a 3rd part app, and the computer using Outlook.  When I try to repair the connection on Outlook, it says "We couldn't connect to the incoming (IMAP) server using the specified encryption method.  Please check the incoming (IMAP) server encryption method and try again."  My incoming server settings are: IMAP: imap.comcast.net PORT: 993 ENCRYPTION METHOD: SSL/TLS.  Outgoing server settings are: SMTP: smtp.comcast.net Port: 587 ENCRYPTION METHOD: STARTTLS.  I am able to access my web email and through the Xfinity app.  No settings have been changed in the past month.  I updated my 3rd party application on my phone to no avail.  I installed Outlook on my phone and was unable to add the comcast email to the app and I get an Unable to login message.  I also checked to ensure Third Part Access Security was enabled.  Please help!

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user_ofgk8j

Visitor

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1 Message

22 hours ago

As of Saturday, lost the ability to get email on my iPad (IMAP error) and then last night, stopped on my iPhone.  I have go through all the steps provided, no less then 3 times.  Verification of 3rd party, change pw, delete and create new, checked all settings.   I can get email fine on desktop version.  This has been reported and seemingly on DM to Comcast many times, is there any resolution yet?   

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user_1adheu

Visitor

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2 Messages

16 hours ago

Ive been working all day on this, both my android and Thunderbird stopped working sometime Saturday Dec. 6th (I can still see my emails by logging in), Missing really important emails because there not coming to my phone anymore,   I understand they are moving our accounts to yahoo but tried putting Comcast address in there could not be found on yahoo???  

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