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Saturday, July 22nd, 2023 4:32 AM

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Comcast ip blocklisted, email keep going to spam

Hello,

my emails keep going into peoples spam folders, even if I’m simply replying to their emails. At first I thought that the issue was with my email host, but the issue is with the Comcast ip address that I have been assigned.

How can I fix this issue?

Official Employee

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1.9K Messages

2 years ago

Hello @user_afd83d and thank you for reaching out. You will need to contact our support via 1-800-XFINITY and ask to speak to our Customer Security Assurance team. They have the proper tools to assist you with with a possible IP Block. 

6 Messages

@XfinityPeterH​ 

I tried that and they told me to ask here on this forum 

Official Employee

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1.9K Messages

2 years ago

When you spoke to the CSA team they told you to reach out to us? They should have put in a ticket for you. Did they give you any ticket number? 

6 Messages

@XfinityPeterH​ she did not give me a ticket number 

Gold Problem Solver

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26.4K Messages

2 years ago

... the issue is with the Comcast ip address that I have been assigned. ...

Where is it listed? If you are a residential Comcast customer and your public IP is listed on something like the Spamhaus PBL, you can't remove it. All dynamic residential IPs assigned by all ISPs can change at any time, and for that reason all of them are, or should be, on a number of policy blocklists. That doesn't mean you can't send email or that your email should be considered spam, it only means you can't operate an email server on your Comcast service. That would also be contrary to Comcast's Internet AUP (see https://www.xfinity.com/Corporate/Customers/Policies/HighSpeedInternetAUP).

Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.

(edited)

6 Messages

2 years ago

spamhaus and MX Toolbox says that my ip address is blacklisted. My emails are sent through our dreamhost email server. Dreamhost says that it’s nothing on their end and that it must be the ip address from my isp. We don’t send mass emails, but the emails will wind up in our customers spam folder. 

Gold Problem Solver

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26.4K Messages

2 years ago

spamhaus and MX Toolbox says that my ip address is blacklisted ...

You haven't said which list your IP is on. Mail services shouldn't "spam" your mail just because it's on of the Policy blocklists like the Spamhaus PBL. If you're on one of the "known spam sender" lists, that's a different kettle of fish. Which is it?

Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.

6 Messages

2 years ago

When I check my ip address on Spamhaus, it says 

This IP is listed in the Policy Blocklist (PBL)

Don’t panic!

The inclusion of your IP address on the Policy Blocklist (PBL) is standard for the vast majority of internet users and is not the result of your actions. Here are some key PBL facts for your understanding:

  • Being on this list does not mean that you won’t be able to send emails.
  • You do not need to request removal from the list.
  • This listing is controlled by your Internet Service Provider (ISP), not Spamhaus.
  • Your ISP lists ranges of IP addresses that shouldn’t be sending email directly to the internet.
  • Typically, IPs of broadband or dial-up customers will be included in this list.
  • This is part of internet best practices enacted to protect all users.

i checked my domain names on Spamhaus and they came up with no issues 

(edited)

Gold Problem Solver

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26.4K Messages

2 years ago

... This IP is listed in the Policy Blocklist (PBL) ...

As stated, all Comcast residential IPs are, or should be. Suggest if you are using Dreamhost to send the mail that is being "spammed" that you work with them to identify the reason why. No competent email operator would "spam" mail just because it contains an IP that is listed on the PBL.

Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.
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