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Phizwiz
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Sunday, October 27th, 2024 5:12 PM

Blacklist error message 0X800CC92

I have used Outlook on Microsoft 365 for more than a year, to access two email accounts that Xfinity has graciously grandfathered in for me. Within the past two months, my downloads to Outlook are almost invariably blocked by Comcast with a Blacklisted message and an error code of 0X800CC92. Occasionally, everything works as it should, but this has been a rarity. With one exception, I have been able to access Comcast email directly using the same passwords as in Outlook, but when I tried to create a new Outlook profile as recommended by Microsoft, it failed in roughly the same manner as the email downloading failed.

I do get email on a gmail account both directly and from one Comcast account in which I set a forwarding address. While this email uses IMAP and the two Comcast accounts are POP3, my wife has the same email problems and all of hers are IMAP, yet only the gmail seems to work regularly. Could this simply be a port problem, and if so, what are the latest advised port and security settings for POP3 and IMAP?

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XfinityDemitrius

Official Employee

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1.3K Messages

2 days ago

Hey @Phizwiz, Thank you for visiting our official Xfinity Forums Community support page. We greatly appreciate you taking the time to share your experience regarding the Xfinity Email service. I would be more than happy to offer my assistance looking into this further for you.

 

You can find out recommended Xfinity Email port settings by visiting our 'How To Set Up Your Xfinity Email Address With an Email Program' support page. Also, be sure to verify and check that you have third-party access enabled by going through the following steps on our 'Turn your access to third-party email programs on or off in Xfinity Email' support page.

 

Do you currently have access without issue when attempting to access our Xfinity Email service through our official web portal?

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Phizwiz

Frequent Visitor

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@XfinityDemitrius​ Thanks. The third party access was set properly. I checked this morning, again.  I'll go to the set up link, which I never did before because I thought, based on Outlook verbiage, it only required me to match what worked before when I was using Windows Live Mail. As all was good for a year and a half, I just kept going. More later after I look at the link.

Apart from one time, I've been able to access Xfinity Email service through the official web portal. So, I suspect the problem is a fight between my Outlook client and the Xfinity email system/server.

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2 days ago

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XfinityAmandaB

Official Employee

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1.5K Messages

 

Phizwiz If you could and keep us updated. There are a few places that a password is needed and we have seen in the past the password needs to be updated or readded, but it sounds like it is having some issues authenticating.

 

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2 days ago

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Phizwiz

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@XfinityAmandaB​ HI Amanda,

Yes, the error is an authentication error, OR, something with the Blacklist went bonkers. Happens from time to time. I've been trying to get Microsoft Support to see if my version of Outlook might be to blame, but that's still a work in progress. Since everything has worked for more than a year, I have to think that some protocol changed. When I've tried to set up a new Outlook profile to essentially reinitialize my Comcast connections, I was asked to set up an IMAP connection, with no apparent POP3 option. As my current Outlook accounts for Comcast are POP3, I wonder if there's some problem with POP3 now. On the other hand, my wife has all the same problems with Outlook, and she uses IMAP exclusively.

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1 day ago

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XfinityLinda

Official Employee

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1.3K Messages

@Phizwiz Thanks for sharing. Please update your results here in an effort to help our community. Much appreciated!

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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1 day ago

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Again

Expert

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30.9K Messages

@Phizwiz 

Could you please check your settings to see if your Authentication method is Normal password or OAuth2?  It should be Normal password.

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

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1 day ago

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