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Ongoing issues with Returned/Bounced Emails - Outlook.com blocked!

usagiart
Level 2

Hi Hi TPG,

I am still having issues with sending emails from the TPG online Post Box.

Today I tried forwarding an old email to a @outlook.com email address that has worked successfully previously and it was returned from the Outlook domain with the following response. 

 

***Diagnostic-Code: SMTP; 550 5.7.1 Unfortunately, messages from [203.12.160.53] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150).***

 

I checked and 203.12.160.53 is the tpg web-mail IP so I can see why the Post Office emails are bouncing.

 

I resend the email from my mobile phone using its WiFi (non-TPG) and the email was received.

 

Can this please be resolved as I suspect this is one of the reasons for my hotmail emails being bounced too.

 

Thanks

Nat

2 REPLIES 2
BasilDV
Moderator

Hi @usagiart

 

We'd like to check on this further with our Post Masters to confirm.

 

Shoot me a PM with your TPG username or customer ID number.

 

BasilDV

usagiart
Level 2

Thanks BasilDV

I have sent you a PM with the details.

Nat