Visitor
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5 Messages
Unable to receive email from Microsoft365 Outlook sender
Emails to a Comcast.net address from a Microsoft365 Outlook address keep getting bounced back to Sender with the following error
resimta-c2p-558786.sys.comcast.net rejected your message to the following email addresses:
( redacted )
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-c2p-558786.sys.comcast.net gave this error:
( redacted ) sender rejected
After that, it's all just blah, blah, blah over my head :-(
What is the sender or recipient to do ???
XfinityBillie
Official Employee
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3.9K Messages
35 minutes ago
@user_164id6 Thank you for letting us know that you are having issues sending an email. It looks like the server you were trying to email is blocking your emails. You can click here to see what could be blocking the email from sending. If the FAQs do not help to resolve the concern, at the very bottom of the page is a link that allows you to contact our CSA (Customer Security Assurance) team. They are experts at helping to resolve issues such as this with emails.
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