Visitor
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3 Messages
iOS Mail App Problems
I use several different apps to access my Xfinity email including Outlook365 on my PC, the Apple mail app on both my iPhone and iPad. I'm having trouble with the iPhone email app. I keep getting:
The Mail server imap.comcast.net is not responding. Verify that you have entered the correct account info in Mail settings.
Also:
Server code "ALERT", server message "Temporarily blacklisted IP Address - try again later"
I thought maybe this was due to my VPN which I have to pause to get to my bank account; however, that worked for awhile, but no longer. I also get the prompt that my imap account password is not correct. That is not the case. The same password is used for the other two devices and I have no problems getting my email. (OX works as well.) I've tried resetting the password in the Mail app but the app insists the password is incorrect.
Can anyone tell me what is going on and how to fix this? I like the iOS Mail app and since I have my phone with me most of the time and because I have my email set up in a particular folder structure, not having that on my iPhone is a real bother.
XfinityDena
Official Employee
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3.5K Messages
3 months ago
@user_ca20da I am sorry to hear of this issue. Have you followed the steps for set up with the link: https://www.xfinity.com/support/articles/email-client-programs-with-xfinity-email ?
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user_ca20da
Visitor
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3 Messages
3 months ago
Just tried to update but guess I wasn’t logged in. Problem happening again. iOS Mail app has correct settings. Was working for a couple of days except I couldn’t send email. It just got stuck in the Outbox. All does work in Outlook/Office365. iOS and Mail app are up to date. Windows 11 and Office/Outlook are completely up to date. Still getting that my IP address is black-listed from iOS Mail. I can send/receive email via OX or when logged into Comcast/Xfinity webmail. My ISP is GloFiber. I use the Surfshark VPN and get whatever IP is assigned. (No dedicated IP.) Ove tried temporarily disabling VPN on iOS devices. Doesn’t help. (I do use a password manager and made sure the password for Xfinity/Comcast is correct there.) I could, I guess, go to another email provider but my Comcast email address is buried in so many places that is going to be a real hassle. SO PLEASE HELP ME GET THIS FIGURED OUT!
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user_ca20da
Visitor
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3 Messages
3 months ago
Account configuration deleted and recreated. Devices restarted multiple times. Mail app has stopped completely on both devices. I cannot login without getting a message that account is not recognized. Ox and going directly to the Xfinity webmail allows login and ability to receive/send. Outlook has never been affected. At this point I’m not going to use the local Mail app and stick to webmail.
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user_sz7f7q
Visitor
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4 Messages
2 months ago
I recently switch to GloFiber and I expect that may be what caused the issue.
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Taurus2313
Contributor
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84 Messages
7 days ago
I think that this is an issue within Xfinity email servers as I am seeing on here via posts where many including myself are getting this same error message about Blacklisted IP, please try again later or contact your email provider. I did post on these boards about this same issue. We would like to know when we can expect to have this issue resolved Xfinity. As of midnight today 8/21/2025 my android email app has not been able to check and retrieve my emails. Last sync time. Every time since the start of this day it cannot connect of receive them due to this Blacklisted IP issue.
Please help us get this issue resolved. Someone from Xfinity please contact me (since we are not able to contact you via the boards) so that we can get this issue fixed.
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