Emails sent from our Comcast Business account get rejected by comcast.net

We have a CBCI account in our office, with 2 routers in different rooms. We moved the users to the other router last week, and an yemail they send to a comcast.net account is rejected. Here's the reject msg:

This is the PPE Hosted Dispatch mail system.
PPE Hosted tried to deliver your email message,
but was unable to do so for reasons outside our control.
We recommend contacting the person or service responsible for
looking after the recipient domain's email server directly.

The last error message we have available from the recipient's
server is included right below, along with an extract of your
email:
<https://urldefense.proofpoint.com/v2/url?u=http . .    deleted personal info>: host mx2.mxge.comcast.net[96.103.145.163] said:
    552 5.2.0 yAjVtqs0thDYUyAjWtvF6m Prohibited by policy (in reply to end of
    DATA command)

It seems odd that a Comcast Business account can't send to a comcast.net account?

Responses

XfinityBenjaminM

Official Employee

•

1.9K Messages

5 days ago

Hello! Thank you for creating a public post. We'll be happy to investigate this further. We also see your DM and we will reply to you shortly.

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fred2179

Contributor

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33 Messages

After some research, I think this is caused by an SPF problem at the DNS.

We have a Microsoft Office 365 mail system, and a custom domain, both hosted by Godaddy.

Both our Comcast Business routers work, but one does not support sending email to comcast.net clients (hence this thread.)

Could it be that the routers have different IP addresses and the SPF record doesn't cover the second router?

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5 days ago

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XfinityBenjaminM

Official Employee

•

1.9K Messages

Please visit your Direct Message, we have sent you an update.

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

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5 days ago

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U

user_d2cg33

1 Message

did you get a satisfactory answer and did it work?

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4 days ago

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Again

Expert

•

31.4K Messages

5 days ago

@fred2179

You should be posting in our business forums. This is residential. 😉

Also.....

Direct messaging isn't allowed until an official employee asks you to do so; it's against the Forum Guidelines and the Acceptable Use Policy to send anyone an unrequested DM/PM. Also note, if you do send one without being asked to do so, it could possibly be ignored.

Please post your issue in public in the proper forum so that it can be addressed either by other customers or by an Official Employee.

1

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fred2179

Contributor

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33 Messages

Re: "This is residential." the problem is the residential comcast server receiving email is bouncing them. So it may be both systems.

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4 days ago

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fred2179

Emails sent from our Comcast Business account get rejected by comcast.net

XfinityBenjaminM

fred2179

XfinityBenjaminM

user_d2cg33

Again

fred2179

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