Visitor
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2 Messages
Emails on iPhone are not working
I use an iPhone (16 Pro; iOS 18.5) and continually get error messages for Comcast. First I was continually prompted to enter my password (done), and would sporadically get emails after a few prompts/responses. But now I haven't received emails for weeks and get the message: "Cannot get mail; The mail server "imap.comcast.net" is not responding. Verify that you have entered the correct account info in Mail settings. Server code "AUTHENTICATIONFAILED", server message "Authentication failed". "
I've done all the actions suggested in other threads without resolution. Help and thank you!
[Edited: "Personal Information"]



XfinityAlfonso
Official Employee
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2.3K Messages
5 months ago
Hello user_etx2qb thank you so much for taking the time to reach us here via our Xfinity Forums! What email service are you using on your iPhone to receive Xfinity emails? Are you able to login via the Xfinity webiste, and see the missing messages?
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user_q6c0zb
Visitor
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1 Message
5 months ago
I am getting this as well. I erased my account on my iphone and added it again and it works a little bit and then have the error message again
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user_v3c1n1
Visitor
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3 Messages
5 months ago
My spouse and I are experiencing the same issue. We have both deleted and re added the email to our phone. Is there a fix for this? We both have I phone 16s
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user_finare
Visitor
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2 Messages
2 months ago
Hello Xfinity - I also have been experiencing this issue as described above in the OP (30 July 2025) on my iPhone 12. Is there any resolution available? (Deleting and re-adding the account did not work.)
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user_bi05y4
Visitor
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2 Messages
1 month ago
My wife and I have the same issue and use the default mail/apple service. We have had Comcast emails for over 20 years and never a problem until this year. Deleting and adding the accounts back does not work, it states Comcast is currently not available. Yes, I can check email from a browser, but it’s inconvenient and slow.
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user_z41po1
Visitor
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5 Messages
1 month ago
Has anyone found a solution for this. I’ve been having intermittent issues of incorrect Comcast imap password or server not available,meet I can sign in directly in the xfinity app using the same (correct) password
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user_z41po1
Visitor
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5 Messages
1 month ago
Same problem intermittently as above-tried all the options to correct without resolution. I usually get the message incorrect imap password, but recently received a message the server not available. I tried deleting and readding-now I have no Comcast emails on my iPhone mail app. I can sign in directly with the xfinity app using the same (correct) user name and password. This most recent episode started several days ago-ha not been resolved yet.
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user_glegmn
Visitor
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1 Message
1 month ago
I am having the same problem on my Iphone. I can't get my emails. So I did all the suggestions including deleting my comcast email from my Iphone and reinstalling it. Now it says Comcast is currently unavailable.. I try again and it says the same thing!!! So now I can't load my comcast email on my Iphone!! This is very irratating!
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user_cfftu0
Visitor
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1 Message
1 month ago
Same issues. Neither comcast or apple support can resolve this intermittent failure. Yet another reason to leave comcast….
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user_k9kc1g
Visitor
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1 Message
2 days ago
After reviewing all the replies in this thread, it's apparent that Xfinity Comcast has no help to provide. The responses are typically to check your own systems and also providing useless links. I've checked and rechecked everything possible and Apple Mail receives but cannot send email from either one of my accounts. Other non-Comcast accounts work just fine.
I'm running a MacBook Air with MAC OS Sonoma 14.8.3 (most current version) with Apple Mail 16 (most current version). The outgoing server setting is using TSL 1.2 and 1.3 (both fully compatible with Xfinity web mail). Also, I have checked and unchecked the Third Party Security settings in Xfinity email settings and Apple Mail immediately recognizes when the setting is turned off AND immediately recognizes when it is turned back on.
I'm having the exact same issues with iPhone email as everyone else has mentioned and nothing works to fix Comcast email on the iPhone either.
It does not matter how many times accounts are deleted and added; they no longer work except to receive email on the computer and no connection whatsoever on the iPhone.
I believe all this is because of the Comcast transition to Yahoo. Comcast is spreading this out over an entire year with no idea when our email will be authorized to complete the transfer. In the meantime we are all left to flounder like a flag in the wind and unable to use our email in the same manner as some of us have for up to 20-years or more.
I've also had Comcast email address for more than 20-years, so why they can't make this transition move smoothly is irresponsible at best.
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