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Wednesday, January 31st, 2024 1:45 AM

Emails sent to any comcast.net email is being rejected

Today I was informed that someone tried sending me an email to my comcast.net and they got a rejected email message. I then tried sending emails to multiple comcast.net emails right now from various domain emails and gmail, outlook etc and they all get rejected back immediately to the sending email address. 

Your message was rejected by the recipient email server. Please check the recipient's email address and try resending your message, or contact the recipient directly. For more tips to help resolve this issue, see DSN code 5.1.0 in Exchange Online - Office 365. If the problem continues, contact your email admin.

resimta-h1p-037584.sys.comcast.net gave this error:

<email removed>  sender rejected

Is there a Comcast outage?

Accepted Solution

Official Employee

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744 Messages

3 months ago

Hello @kilthro thank you for taking the time to make this post to share your experience to bring this to our attention! We want to ensure this is working as you need! I checked our current known issues and I am not seeing anything posted for email issues. I did see you mentioned below that you got an email to go through. Is everything working as it should for you now, or are there still some emails that are not going through successfully?

4 Messages

Hi there, things have appeared to be working just fine since 9:30 pm on January 30th. It was down for at least 30 minutes that day. Thanks for circling back.

Official Employee

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744 Messages

@kilthro that is great news, I am glad that things are working for you again, and I greatly appreciate your paitence while we worked to make any corrections needed on the backend for your emails to work as you need. If you run into any more issues with this, please do keep us up to date! We'll always be here to make sure you are fully supported as you need!

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

3 Messages

Same problem, different senders, different days. What is going on?

Problem Solver

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1.3K Messages

@user_illeuq Hello, thanks for letting us know about this. I would like to take a closer look at this. Please send us a direct message with your full name and service address. 

Here are the detailed steps to Direct Message us:

• Click "Sign In" if necessary

• Click the "Direct Message" icon (upper right corner of this page)

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

• Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list

• Type your message in the text area near the bottom of the window

• Press Enter to send your message

I no longer work for Comcast.

Visitor

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2 Messages

3 months ago

I am experiencing the same issue.  Tried sending from various domains including my work email.

4 Messages

3 months ago

I just got an email to go through. Maybe now its resolved or being corrected.. It's definitely a Comcast server-side issue.

Visitor

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2 Messages

@kilthro​ I just got the email notifying me of the reply!  A couple emails also went through.    But before that, mails were getting rejected for at least 20-30 minutes.

4 Messages

@faithbur​ 

Agreed. Same experience here. I appreciate the confirmation. 

Official Employee

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655 Messages

Hey there @faithbur  glad to hear that some emails were going through. Are those emails now sending/receiving correctly? 

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

New Poster

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3 Messages

3 months ago

Only email at exfinity.com seems to be working.  No Apple devices and outlook are updating.

3 Messages

3 months ago

I am having the same problem.  Some emails that are being sent to me are being rejected by Comcast with the 5.1.0 error message (server rejected).  Not every email, just a few with attachments or links.  This has happened twice in the past days, not both at the same time.  I read that there should be a link in the rejected email that the sender can click to resolve. But there is no link.  t appears this is a Comcast issue where they have decided some emails could be spam.  Comcast, how do I resolve?

Official Employee

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805 Messages

@user_illeuq​ That (specifically "server rejected") is not a message that our systems generate.  Is there a prior deferral message?  Can you tell me who the sending domain is for the message?

Visitor

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1 Message

2 months ago

This is the message I have been getting for days. Any help would be appreciated

Your message wasn't delivered because the recipient's email provider rejected it.

Official Employee

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805 Messages

@ked6​ If you have the full notice, that text could be helpful.  Thanks

Official Employee

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821 Messages

Hello @ked6, thank you for taking the time to reach out on social media.  I understand your concern with the email, and I'd like the opportunity to check into that for you.

 

To access your account, will you please send us a direct message with your full name and complete service address to “Xfinity Support”. To do so, click on the chat icon located at the top right of this forums page.

Here's the detailed steps to direct message us:

  • Click "Sign In" if necessary
  • Click the "Direct Message” icon (upper right corner of this page)
  • Click the "New message" (pencil and paper) icon
  • Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list
  • Type your message in the text area near the bottom of the window
  • Press Enter to send your message
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

1 Message

2 months ago

Same issue. Some email sent to my @comcast.net address is rejected. I get letters from businesses (e.g., my bank) saying things like "We tried to email you, but it didn't go through."

(edited)

Official Employee

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805 Messages

@bradweeden​ I'll send you a DM to get some details

Official Employee

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821 Messages

Hello @bradweeden, thank you for taking the time to reach out on social media.  I understand your concern with the email, and I'd like the opportunity to check into that for you.

 

To access your account, will you please send us a direct message with your full name and complete service address to “Xfinity Support”. To do so, click on the chat icon located at the top right of this forums page.

Here's the detailed steps to direct message us:

  • Click "Sign In" if necessary
  • Click the "Direct Message” icon (upper right corner of this page)
  • Click the "New message" (pencil and paper) icon
  • Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list
  • Type your message in the text area near the bottom of the window
  • Press Enter to send your message
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

1 Message

2 months ago

I send email blasts through email software Iterable. For the past several weeks, comcast.net emails have been bouncing. Just since yesterday, I can track 1500 bounces. @XfinityAlex can you help me get my domain un-blocked? Our comcast clients are emailing us, upset that they aren't getting our emails.

Official Employee

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805 Messages

@eveeveve​ You'll need to send me a DM with more information, including the domain name

Official Employee

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898 Messages

 

Hi, eveeveve. Take a look at this article: Report a website blocked by Xfinity xFi Advanced Security You can submit a request to have a blocked website reviewed for possible unblocking. 

 

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

5 Messages

1 month ago

Legit emails are being rejected but yet SPAM is getting through. How can I check what is being rejected? It is various people/businesses.

Your message to <xxx> was automatically rejected:

unwanted

Can't do a live aent chat, the IT Assistant won't pass it through.

(edited)

Official Employee

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805 Messages

@user_8s3qrz​ Can you send me a DM with more details?   The sending IP or domain would be a huge help.

5 Messages

I submitted some information, has that been reviewed?

Visitor

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4 Messages

27 days ago

All our sent emails to the users under "comcast.net" get bounced back! 

I have an identical issue. Whenever I try to send any emails to the comcast.net email address! I got the "resimta-h2p-561953.sys.comcast.net rejected your message to the following email addresses"

(edited)

Official Employee

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805 Messages

@ywray​ Please send me a DM with the relevant information, such as domains and/or IPs.  Thanks

Visitor

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4 Messages

@XfinityAlex​ oneflight.net

 "resimta-h2p-561953.sys.comcast.net rejected your message to the following email addresses"

(edited)

Expert

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30.3K Messages

@ywray​ 

You need to send that information to @XfinityAlex in a direct message.

To send a direct message:
 
Click "Sign In" if necessary
 
• Click the "Direct Message" icon in the upper right
• Click the "New message" (pencil and paper) icon just to the right of Conversations
• Type "Xfinity Support" in the "To:" line not the Employee's name
• Type your message in the text area near the bottom of the window
• Press Enter to send it
 

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

Visitor

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4 Messages

I submitted some information in private, but I still haven't got any response from you!

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