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user_afw5oz
1st Topic

4 Messages

Saturday, April 27th, 2024 2:52 PM

Closed

email periodically will not connect when I am on a non-Comcast ISP

I moved to an area without Comcast service. I use the legacy email service due to 20 years with Comcast. With increasing frequency it is not possible to resolve comcast emails. Applications keep requiring forced reconnect to SMTP server by entering new password. If I use the browser to connect, all's well. I have used Outlook, Thunderbird, Edison Mail, etc. on multiple devices (PCs, iPads, Android phones) all with the same results. The email service resolves periodically. May work fine for days, then the problem pops up again.

Comcast has said they are not blocking my IP address.

My ISP has said they are not blocking anything with Comcast.

I used dnschecker.org to see if I could ascertain issues.

  • My IP address does not appear on any blacklists
  • My ISP is not on any blacklists
  • Comcast is not on any blacklists
  • I checked Domain DNS Health status because if there are problems with DNS configuration periodic interruptions in service can occur. I found the following for comcast.net
6 Problems
  Category Host Result
DMARC comcast.net DMARC Quarantine/Reject policy Not enabled.
SMTP mx2c1.comcast.net. Unable to determine Open / Closed relay status.
SMTP mx2c1.comcast.net. No TLS support.
SMTP mx2c1.comcast.net. Reverse DNS is Not a valid Hostname.
SMTP mx2c1.comcast.net. Reverse DNS does not match SMTP Banner.
DNS comcast.net Bad Glue Detected.

There are clearly issues with the servers that should be addressed by Comcast's IT staff. Until these are resolved, the intermittent failures to connect with  Comcast email appear to reside with Comcast.

Thank you for looking into this issue.

Regards,

user_afw5oz

Question

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Updated 

7 months ago

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XfinityKassie

Official Employee

 • 

1.3K Messages

7 months ago

 

user_afw5oz Good morning, Happy Saturday! We appreciate you reaching out for assistance through our Community Forums. Thank you for sending over detailed information, it's very helpful in identifying where we should pick up. I'd like to take a look on my side, and get you in the right direction. To begin, can you please send a Direct Message with your name, the last service address you had with Comcast, and the email address we will be working with today? 
 
Click "Sign In" if necessary
Click the "Direct Messaging" icon at the top of the page (looks like a text bubble)
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

 

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user_afw5oz

4 Messages

@XfinityKassie​ : I am in direct messaging. my preference is that comcast resolve the problems reported when the dns health check was run. once comcast has addressed those issues we can evaluate if the issue persists.

7 months ago

0

XfinityKassie

Official Employee

 • 

1.3K Messages

 

user_afw5oz Thank you for the DM! I look forward to working with you today! 

 

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

7 months ago

0

user_afw5oz

4 Messages

Disconnected DM one-hour after providing contact details with no response from Comcast support. Will look for an update by Monday, April 29. If no update from Comcast I will re-test the domain and post results in this forum.

Posted the same in DM.

Regards,

user_afw5oz

7 months ago

0

XfinityDaveL

Official Employee

 • 

190 Messages

7 months ago

@user_afw5oz  I sent you a private forum message a moment ago.  Can you read and reply when it's convenient?

2

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user_afw5oz

4 Messages

Following our private messages 3 days ago (May 1) I have reported that the problem persists and have discovered that our emails are showing on a blacklist related to our current IP. 4 of the 6 comcast servers I checked show our emails blacklisted. Two do not. I contacted the service that manages the blacklist (SPFBL.net) and they reported that our email/IP is not blacklisted. Further they said that this is a problem only my email service provider can resolve. Details shared in the private message thread.

Please respond soonest since I have had no communication from Comcast since Wednesday, May 1.

7 months ago

0

XfinityJamesC

Official Employee

 • 

1.7K Messages

Thank you for getting back to us, @user_afw5oz. We can definitely pick things up where we left off. Please feel free to send our team a direct message as soon as you are able. We look forward to speaking with you.

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

7 months ago

0

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