A person I normally get e-mails from multiple times daily is having them bounced back to her. I use an Outlook address.

[Nancy E.Yarmac]

Over the last few days this person has gotten several emails she addressed to me, bounced back. Here is one of the bounces:


-----Original Message-----
From: Mail Delivery Subsystem <MAILER-DAEMON>
Sent: Friday, May 29, 2020 10:20 AM
To: @jumpinjays.com
Subject: Returned mail: see transcript for details

The original message was received at Fri, 29 May 2020 14:19:29 +0000 from
75-144-175-138-NewEngland.hfc.comcastbusiness.net [75.144.175.138]

----- The following addresses had permanent fatal errors -----
<@outlook.com>
(reason: 550 5.7.1 Unfortunately, messages from [209.235.156.162]
weren't sent. Please contact your Internet
...ail.live.com/mail/troubleshooting.aspx#errors.
[VI1EUR05FT038.eop-eur05.prod.protection.outlook.com])

----- Transcript of session follows ----- ... while talking to
outlook-com.olc.protection.outlook.com.:
>>> MAIL From:@jumpinjays.com> SIZE=5762
<<< 550 5.7.1 Unfortunately, messages from [209.235.156.162] weren't sent.
Please contact your Internet service provider since part of their network is
on our block list (S3140). You can also refer your provider to
Troubleshooting.
[VI1EUR05FT038.eop-eur05.prod.protection.outlook.com]
554 5.0.0 Service unavailable (I called my internet provider and they referred me to Microsoft)

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