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Outgoing Hotmail messages undeliverable

hyerbury
Level 2

For the past two or three weeks, I get these message undeliverable notices from hotmail - see below. Can anyone suggest how I solve the problem? Thanks

 

 

Action: failed
Status: 5.7.1
Diagnostic-Code: SMTP; 550 5.7.1 Unfortunately, messages from [203.12.160.131] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [BN7NAM10FT068.eop-nam10.prod.protection.outlook.com]
Last-Attempt-Date: Wed, 30 Jun 2021 19:49:21 +1000

1 REPLY 1
Anonymous
Not applicable

Hi @hyerbury ,

 

Welcome to the community!

 

Thanks for raising this to us. We'd like to confirm if the affected e-mail is from TPG or Hotmail? Also the troubleshooting you have done. 

 

In the event that the affected e-mail address is TPG try to check this article that you may find helpful.

 

Cannot Send Email Rejected by the Server/Banned from using SMTP 

 

You may also try to perform a reboot on the modem/router and leave it turn off for 3mins.

 

Let us know how it will go.

 

Regards,

 


@hyerbury wrote:

For the past two or three weeks, I get these message undeliverable notices from hotmail - see below. Can anyone suggest how I solve the problem? Thanks

 

 

Action: failed
Status: 5.7.1
Diagnostic-Code: SMTP; 550 5.7.1 Unfortunately, messages from [203.12.160.131] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [BN7NAM10FT068.eop-nam10.prod.protection.outlook.com]
Last-Attempt-Date: Wed, 30 Jun 2021 19:49:21 +1000