Unable to Access Comcast Email Accounts using Outlook 365

Hello there @hsherer!  Thanks so much for taking the time to reach out to Xfinity Support here on our Community Forum.  WE are so glad to hear from you and want to help in any way that we can.  No worries!  You have reached out to the right team, and we are here to ensure your services concerns are properly addressed & resolved.  Please feel free to shoot us a private message so that we can take a closer look at what is going on for you.  

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I have the exact same problem, and it just started.  It seems as if outbound email is working, just not inbound.  I have tried everything.  It all started with Xfinity foracing a password change, and now I can only access email from a browser.  Outlook and my iPhone email apps do not work.

I cannot access my email on my Android phone or tablet with Outlook. (Email does work on my computer with Outlook.) It started after I was asked by Comcast to change my password. I got a message to "sign in" and then an "Edit imap" screen comes up. When I enter my new password, I get an error message. I called Comcast but an agent took so long trying to find a solution that I had to end the call to leave for an appointment. It sounded like he had no idea what I was talking about. Please tell me if the imap settings have changed or if there is another way to repair this problem.

Cannot receive any comcast.net emails on Outlook client (Mac, PC or iOS) after forced password change.  Also cannot use any other email client on Mac or PC to do so.

CAN re-establish connection in native iOS Mail app after some work (have to trick setup with wrong password just to get to screening allowing IMAP vs. POP choice.  

Web-based email seems to be working.  

What a [Edit: Language].  What is wrong with Comcast?!

This is happening to me now and I am in DM hell with a tech that can read what the system tells him, but is pretty limited in his knowledge. 

Funny thing, I have two different email apps on my smart phone.  One of them can access my comcast email and one cannot.  [Edited: "Language"]

Same here. Changed password and I can use it for web and Thunderbird but not Outlook on my phone. (IMAP)

This is totally unacceptable especially since Xfinity had a data breach Oct 2023 and didn't even inform customers unless we happened to log in to our Xfinity account which I did when the cost went up in Jan. I don't have time to DM/call support while they try to figure it out. Provide a fix for android/iOS and post on your website. Use your profits to hire/pay staff that can deal with your constant tech issues and down time. Is this what we can expect with no regulations and monopolization of every industry? I can't wait to move and not have to use Xfinity for internet!!!!

An Outlook Tech told me the email problem was  with Xfinity’s server identity and trust chain listed in their SSL certificate which does not match the domain

The same problem started for me when xfinity prompted me to change my password today. Now the only way I can get new emails is through the xfinity website, not on my Android and not on my PC.  I keep getting prompted to input my password on my phone and the Login Error message displays and asks me to try again.  The message on my PC says Outlook couldn't synchronize the folder for my email and cannot connect to the server. I'm advised to contact the internet service provider. After reading the comments below, I don't want to waste hours of my time contacting Comcast. HELP!

Opened a DM with support, checked all the level 1 boxes (third party access security? right password? clear outlook cache? uninstall/reinstall - STOP!)

Agent requested full name and service address to 'fully verify' the account. I mentioned I no longer have service (moved out of comcast area) and just want to keep email. Agent Jodie said (s)he would send 'a 15 minute live security code over to the email' ... then I got ghosted.

Thanks, Comcast!

I'm experiencing the same thing on all Android devices. I've tried uninstalling & reinstalling Outlook with no joy.

Walks and talks like the previously mentioned SSL Certificate issue to me & that could be easily fixed if it could simply be acknowledged and addressed! This is a major pain and sadly exemplifies a lack of accountability and timely communication with the IT/support department. Seems to be a lost cause to expect a big business to honor their obligation to actually deliver a working service (much less basic respect of accurate and effective answers) to their paying customers.

For now, I guess I'm locked into logging into the website with it's terrible search functionality along with everyone else.  Meanwhile, Outlook keeps asking me to login on my email@comcast.net and rejecting my email & password combination that it's website accepts for successful login. So fun!

I am having the same problem.  Please set me up for direct messaging

As I said earlier, I am having the same problem... when my IP isn't "black listed." Other times it just keeps asking for the password. I put it in. It won't accept it. This happens over and over. Could someone please help me as well?????

Solution - if you are beyond frustrated just go to the last paragraph for this partial solution using just your phone.

For the last few days, whenever I try to get my Xfinity email using outlook on my computer, I get popups asking me to log onto my account and enter my username and password.  Upon entering my password, it says my username and/or password are incorrect.  I try again and the same thing happens.  It is an endless cycle and I don’t get my mail.

I tried everything to fix the issue.  I deleted my email accounts and tried to reinstall them.  The new accounts would not be accepted.  I thought it might be a reset password issue and tried to reset my password, but Xfinity wanted me to be home near my router – for the purpose of resetting my password.  Unfortunately, I am out of the country.  I went to the Xfinity homepage to get my email, but it didn’t show any of my recent emails and it wasn’t working.  I also went to my Xfinity My account on my phone.  Xfinity wanted to update my phone app right then and I was made to endure the update and I couldn’t see any of my emails.

I then called the Xfinity help phone number (800-xfinity) and went through hours of talking to a heavy accented individual that I was constantly asking him to repeat himself because I couldn’t understand him.  Eventually we got to the point of where I could get my emails using an archaic and time-consuming process of finding the right Xfinity website and logging on.  But because I have multiple emails with Xfinity, I must sign on separately for every email account.  What a waste of time.  In the end Xfinity blamed outlook (3rd party provider) and they were satisfied that because I could at least get my emails through Xfinity they had done their job.

Solution (but only partially).  In using my apple phone, I turned off my WIFI and disconnected from my router.  (no longer connected to cable).  In using cellular service alone, I went back to my phone app for outlook and added my two Xfinity email accounts.  It worked perfectly and easily.  Now I have all my email accounts and I can access them just using my face ID.   It’s obvious that Xfinity must solve this issue and it is their problem alone.

Good morning -

Having the same issue with Outlook and Thunderbird where after changing the password per Xfinity's request due to DATA BREACH and now no email client works from a Windows 11 PC or Mac in my home.  I have tried all the solutions recommended from changing password back to original, to deleting Outlook Profiles and creating new, as well as completely trying on a new build of Windows 11 PC (Clean Install) and it appears the IMAP servers are no longer accepting the passwords after they are changed.  Webmail works fine as a work-around but to me it is obvious that Xfinity has a larger issue with their servers.  Perhaps moving to Microsoft 365 to host all emails would be the best solution for Xfinity to invest in to meet needs of their customers.  With the amount of $ we spend on internet and other services, it would be a no brainer to fix this ASAP.