U

Saturday, March 29th, 2025 2:13 AM

Email errors

Just yesterday I started having email problems. I am not a current xfinity customer but have a comcast email address that I have had and has worked for years. Starting yesterday some emails come through, some are denied with the following error: 552 5.2.0 yHjDtLNF5UDQGyHjDtYVo1 Prohibited by policy

I looked this up and everything I'm seeing seems to point to sending emails, not receiving, and the problem I'm having is receiving - but only some emails...

I called support and they were 100% unhelpful.

Does anyone know how to resolve this?

Expert

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31.4K Messages

7 days ago

Moved to the Email forum as this has nothing to do with Accessibility/disability.

Official Employee

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2.5K Messages

6 days ago

 

 

Totally get how frustrating this is—especially when your email has worked fine for years and then suddenly starts acting up out of nowhere. And to make matters worse, not being able to get clear answers when you do reach out for help? Yeah, that’s beyond frustrating. You’re not alone, and we’re here to help get this sorted out.

 

The error message you're seeing—552 5.2.0 Prohibited by policy—is typically tied to email filtering policies, but you're absolutely right: it’s usually seen on the sending side. That said, when it starts affecting incoming mail, it could mean that Comcast’s spam filters are blocking certain messages based on content, IP reputation, or attachments before they even reach your inbox.

 

Since you're no longer an active Xfinity customer but still using your @comcast.net email, you still should be able to receive emails without issue—as long as the account is still active and in good standing. This type of issue can happen if:

  • The sender’s email server is getting flagged by Comcast’s spam filters

  • There’s a temporary block due to policy enforcement on high-volume or suspicious senders

  • Certain security settings on your email account are overly strict

We’d recommend submitting the issue to our Customer Security Assurance (CSA) team. They specialize in email issues just like this, especially when it comes to policy errors or filtering concerns. You can visit: https://internetsecurity.xfinity.com/help/report-abuse/.

 

It’s not ideal that this happened, but we’re hopeful they can dig in and fix whatever’s causing those specific emails to be rejected. You’ve had that email for years—and we want to help make sure it keeps working like it should.

 

Let us know if you’d like help walking through anything else. We’re here for you!

Frequent Visitor

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6 Messages

4 days ago

We have several customers that are receiving the 552 error on ALL emails they send to comcast.net accounts.  Accounts they've sent to for years.  Something changed.

Official Employee

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1.1K Messages

@n20capri​ thank you for taking time to reach out over this post, and wanted to see if the email issue is still occurring. I'm not sure if you had seen the above reply from my great coworker, in regard to ensuring there aren't an email filters on the receivers end causing them to be received. 

If the email receiving issue is still occurring after checking filter settings: https://www.xfinity.com/support/articles/spam-filters-and-email-blocking-new-experience, I would recommend reaching to our dedicated customer security assurance team: https://spa.xfinity.com/, select get help, then postmaster. It will have some helpful document/tips, and if needed can scroll to the bottom of the page to report an issue. 

Please let me know if that was helpful, or if you have any questions. 

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1 Message

@XfinityJustinC​ Nothing would have changed with either customer - just randomly started happening.  It's with people they email on a regular basis...

3 Messages

@XfinityJustinC​ This is apparently an xfinity/comcast problem and not something with all of us. Some email comes through, some doesn't. It doesn't appear to be any type of filtering because obvious spam is coming through but not emails from people that have emailed me at this address for years.

Please fix it, I rely heavily on this account!

Visitor

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1 Message

2 days ago

I am having same issue.  Cannot send emails from my work email to my personal Comcast email.

2 Messages

2 days ago

Has anyone solved this issue?

For me all emails sent to @comcast.net get kicked back to me.

This started last week after, 15 years of smooth sailing.

My email server, GoDaddy, added something and assured me it is not on their end.

Xfinity support confirmed it is not a security issue.

It is not a file size issue because it happens with all of my comcast.net friends, even those that rarely use that email account.

Please post an example of a seccessfull resolution. Please.

2 Messages

22 hours ago

After a week with none of my emails going to comcast.net the problem has been fixed.

Now all of my emails are successfully being sent to all of my comcast.net friends.

I had read lots of articles about this problem and talked to and texted lots of customer service techs.

   I jumped through many hoops, waited on hold a bunch and dealt with language challenges on the phone.

Nothing seemed to work until Wednesday afternoon I tried another test message and it went through.

The solution might have been something I did, something a tech did or maybe it was a server error that reset itself, anyone's guess.

Technology, usually a friend, sometimes a foe. But I'm kinda thinking it is here to stay.

3 Messages

@user_4j5rn2​ I think it might have been coincidence because mine appears to be working as well and I've done nothing to it. Now that it's working I'll be more diligent about switching over to the email on the domain I own - this should never happen to it.

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