Temporarily Blacklisted IP Address

My email has been working fine for my PC, iPad, and iPhone for years. Now all of a sudden (Monday, 04/24/23) it stopped downloading email to my Outlook and iPhone/iPad email programs. I am getting an error that states:

I have seen that others have had this issue on the Forums. What is the solution as I haven't seen anyone post a fix to it?

Just for full disclosure neither my wife's or my emails will connect via WiFi, but we can both get to our mail from our iPhones PROVIDED we turn off the WiFi and connect to mail through the Cell connection.
This would seem to assure me that it is not a password or protocol issue on the device, but must be the provider's IP getting blocked.

Responses

Accepted Solution

Official Solution

CCJessie1

Retired Employee

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5.9K Messages

2 years ago

@user_cc8848

Welcome to the Xfinity Forum and thank you for posting your question here. We recommend configuring your Comcast email for IMAP and not POP (see additional information below).

POP vs. IMAP: POP (Post Office Protocol) and IMAP (Internet Message Access Protocol) are two different ways to get email in your email program. We recommend using IMAP for your Comcast.net email. POP can cause problems when checking your mail from more than one phone or computer because POP removes the mail from our server and delivers it to your device. IMAP makes it easier to sync your email on multiple devices because your folders and mail remain on our server until you move or delete them with your device. With IMAP, the email changes you make on one device, like your smartphone, are reflected on your other devices, like your laptop.

For additional information on how to correctly configure your comcast.net email address to either IMAP or POP, please see here: https://www.xfinity.com/support/articles/email-client-programs-with-xfinity-email

If you truly need assistance with blacklisted email addresses, you will need to fill out the request form found here: https://spa.xfinity.com/rbl

Please let us know if you have any other questions or need additional assistance.

(edited)

user_cc8848

Visitor

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4 Messages

@XfinityJessie I'm aware of the POP vs. IMAP differences. Our devices are set up to leave the emails on the server, so the POP in our case leaves them there (it's an option you can set). In any event, this isn't a protocol issue it seems to be that Xfinity/Comcast has blocked the IP for whatever reason (I'm guessing security).

As I said the mail function works just fine on the iPhone as long as it's not going through our router/modem. I'm guessing that Xfinity is blocking the IP address from our provider (Highline) for whatever reason. I would still be using Xfinity if we weren't out in the boonies.

I will contact the link at the bottom of your response and see if Xfinity can unblock our IP address.

2 years ago

CCJay

Official Employee

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618 Messages

2 years ago

Sounds good. Keep us in the loop, @user_cc8848.

user_cc8848

Visitor

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4 Messages

@XfinityJay will do. Just submitted a request at 5:40 PM, 04/24/23 and gave details about the provider and IP address.

2 years ago

user_cc8848

Visitor

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4 Messages

@XfinityJay @XfinityJessie well I got an almost immediate response back from Customer Service that said:

Thank you for contacting Comcast Service Policy Assurance. We've received your request to remove your IP(s) from our blocklist. Of the one IPs you submitted, none were on our blocklist..

If you've received error code BL000000 previously, it may mean this IP was temporarily blocked, or that someone else requested we remove it from our Blocklist. Please note: if this IP exhibits malicious activity in the future, it may be blocked.

If you received an error code other than BL000000, please follow the link contained within the error for more information and troubleshooting. Alternatively, you can review the error code information in our Frequently Asked Questions

Needless to say, I was able to connect to my email accounts right after seeing this. They said it wasn't blocked, but it's awfully suspicious that it started working right after I sent the ticket. Could've just been a coincidence, but I don't really believe in coincidences like that. In any event, this is resolved...for now.

Thank you for your help XfinityJay and XfinityJesse.

2 years ago

XfinityAlex

Official Employee

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881 Messages

@user_cc8848 BL00000 is an inbound protection. The issue you're seeing above with POP/IMAP is unrelated. I'll send this over to someone on that side of things to take a look as the cause.

2 years ago

L-2

Contributor

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29 Messages

2 years ago

Today, it's 7/6/23 and this is the first time I've ever received this "blacklisted" email message. I did just "try again later" a few times and now my email is working again within about 15 minutes.

I know I've been subjected to a lot of spam and hopefully Xfinity/Comcast's efforts are either alleviating the issue or at least preventing me from receiving even more (50-100 spam emails/day).

Thanks.

Again

Expert

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31K Messages

2 years ago

@L-2

Please start a new thread with your issues so that someone can address them. Thanks!

L-2

Contributor

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29 Messages

@Again What issue would that be?

2 years ago

Again

Expert

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31K Messages

@L-2

What you are reporting here.

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Please mark an Accepted Answer! tick

2 years ago

XfinityArmand

Official Employee

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1.9K Messages

Hi there @L-2! 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 want to make sure this is taken care of for you. Please feel free to shoot us a private message so that we can get a closer look at this for you.

To send a "direct message" / "private message" message to Xfinity Support:

• Click "Sign In" if necessary

• Click the "Direct Message" icon or https://forums.xfinity.com/direct-messaging

• Click the "New message" (pencil and paper) icon

• The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there

• - As you are typing a drop-down list appears. Select "Xfinity Support" from that list

• - An "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

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

2 years ago

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Temporarily Blacklisted IP Address

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