Security Certificate that cannot be verified for Outlook classic -- POP3

Whenever I open MS Outlook, I get an error message, "Internet Security Warning" related to all of my Comcast email addresses. This doesn't affect my other email accounts (gmail.com, outlook.com, mail.com).

It's not a huge issue, just really irritating, since all I have to do is to click "Yes" and my Comcast emails appear.

A user named "Electrum" posted a thread about this problem, including the related windows of this error message at: https://forums.xfinity.com/conversations/customer-service/security-certificate-cannot-be-verified/62171ec980db9c3cdd5e9818 3 years ago. All he ended up getting was being told to make a phone call for technical support. Somehow, it seems to me, we should be able to do better than that, since I'm still having exactly the same issue.

I have my mail set up as POP3. For some reason Outlook is accessing an IMAP certificate, which does seem problematic. Both Comcast/Xfinity and Microsoft claim that users are welcome to use POP3. Is the problem really that Comcast/Infinity and Microsoft have decided to coerce us into switching to IMAP by just making POP3 inconvenient?

Help?

Responses

XfinityPaula

Official Employee

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1.4K Messages

27 days ago

Hello angelsix. Thank you for reaching out to us and doing your leg work investigating this continuing error when accessing your comcast.net email address with outlook. I'm sorry that you have this warning each time you open outlook. I know first hand that pop3 email client settings are still supported since I use them for my own comcast.net email address. With the application loading an imap certificate I am curious if part of the problem may be that there is a partial imap setting within the mail server settings of outlook.

Would you mind checking if you have these settings in outlook please?

Incoming Mail Server Name: pop3.comcast.net
Incoming Mail Server Port Number: 995 (POP3 with SSL)
- Incoming Mail Server Port 110 is no longer supported.
- Make sure to use port 995 instead.
- You can check this in your email program's Settings, Advanced Settings or Preferences menu.

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angelsix

Contributor

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61 Messages

OK, here are the settings on 1 of the Comcast accounts:

Incoming:

Server: pop3.comcast.net.

Port: 995

Outgoing:

Server: smtp.comcast.net

Port: 465

I'd send you pics showing those settings, but replies don't seem to allow me to do that.

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15 days ago

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angelsix

Contributor

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61 Messages

14 days ago

Aaarrgghh. I didn't see that XfinityPaula had responded, and now she's apparently no longer active. ... sigh.

11

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XfinityJeniece

Official Employee

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3.1K Messages

Thanks for reaching back out, angelsix. Have you ensured the Comcast emails have been configured correctly? Here is a link with more details: https://www.xfinity.com/support/articles/update-pop3-110-995.

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
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13 days ago

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angelsix

Contributor

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61 Messages

XfinityJeniece:

Yes. Please see the settings, above. If there is a way for me to send .jpg images showing my settings, I will.

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11 days ago

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XfinityChelseaB

Official Employee

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1.7K Messages

@angelsix, If you could send our team a direct message with your full name, the name listed on the account (if different), and the service address associated with your account, I'd be more than happy to look into this for you. To send a Direct Message, please click on the chat icon in the top-right corner of the screen, next to the bell icon, and then type or select "Xfinity Support" to initiate a direct message.

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.
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11 days ago

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angelsix

Contributor

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61 Messages

The instructions at

https://www.xfinity.com/support/articles/email-client-programs-with-xfinity-email

approve use of outgoing port 465 if needed. If I use 587 I get an error message.

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11 days ago

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XfinityChristy

Official Employee

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2K Messages

@angelsix What is the error message you are seeing?

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
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11 days ago

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angelsix

Contributor

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61 Messages

4 days ago

I am certainly interested and engaged in resolving this issue. I'm going to be doing some travel, and have some other issues to address, so it might be a while before I get back to this one. I appreciate that Xfinity is interested in resolving it for me.

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XfinityShawn

Official Employee

•

1.5K Messages

angelsix Our team will be here if you should need us when you get back. Have a safe travel!

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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angelsix

Security Certificate that cannot be verified for Outlook classic -- POP3

XfinityPaula

angelsix

angelsix

XfinityJeniece

angelsix

XfinityJeniece:

XfinityChelseaB

angelsix

XfinityChristy

angelsix

XfinityShawn

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