We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Претражи подршку

Избегните преваре подршке. Никада од вас нећемо тражити да зовете или шаљете поруке на број или да делите личне податке. Пријавите сумњиве радње преко „Пријавите злоупотребу” опције.

Сазнај више

Email sent to Hotmail accounts gets returned as "Delivery Status Notification (failure"

  • 2 одговорa
  • 1 има овај проблем
  • 1 преглед
  • Последњи одговор послао adrian.house

more options

Hi, I hope someone can help with this. All of a sudden I can't send to Hotmail addresses - was working fine up until yesterday. Here's the full message that I get:

The following message to <[email protected]> was undeliverable. The reason for the problem: 5.1.0 - Unknown address error 550-"5.7.1 Unfortunately, messages from [134.153.136.23] 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. [DB3EUR04FT045.eop-eur04.prod.protection.outlook.com]"


Reporting-MTA: dns; esa03.ucs.mun.ca

Final-Recipient: rfc822;[email protected] Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [104.47.12.33] Diagnostic-Code: smtp; 5.1.0 - Unknown address error 550-"5.7.1 Unfortunately, messages from [134.153.136.23] 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. [DB3EUR04FT045.eop-eur04.prod.protection.outlook.com]" (delivery attempts: 0)


Any thoughts or help is much appreciated. Got the same result with another friend who has a Hotmail account. Thanks!

Thanks Adrian

Hi, I hope someone can help with this. All of a sudden I can't send to Hotmail addresses - was working fine up until yesterday. Here's the full message that I get: The following message to <[email protected]> was undeliverable. The reason for the problem: 5.1.0 - Unknown address error 550-"5.7.1 Unfortunately, messages from [134.153.136.23] 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. [DB3EUR04FT045.eop-eur04.prod.protection.outlook.com]" Reporting-MTA: dns; esa03.ucs.mun.ca Final-Recipient: rfc822;[email protected] Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [104.47.12.33] Diagnostic-Code: smtp; 5.1.0 - Unknown address error 550-"5.7.1 Unfortunately, messages from [134.153.136.23] 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. [DB3EUR04FT045.eop-eur04.prod.protection.outlook.com]" (delivery attempts: 0) Any thoughts or help is much appreciated. Got the same result with another friend who has a Hotmail account. Thanks! Thanks Adrian

Изабрано решење

adrian.house said

Reporting-MTA: dns; esa03.ucs.mun.ca Please contact your Internet service provider since part of their network is on our block list (S3150).

This is a problem related to your email provider esa03.ucs.mun.ca. The Memorial University probably has a IT department that manage the email server. I think you should contact them and let them know their server has been blocked by Hotmail.

Прочитајте овај одговор са објашњењем 👍 1

Сви одговори (2)

more options

Одабрано решење

adrian.house said

Reporting-MTA: dns; esa03.ucs.mun.ca Please contact your Internet service provider since part of their network is on our block list (S3150).

This is a problem related to your email provider esa03.ucs.mun.ca. The Memorial University probably has a IT department that manage the email server. I think you should contact them and let them know their server has been blocked by Hotmail.

more options

Thanks a lot Danny. I spoke to them today and apparently someone sent out a lot of spam so Microsoft blocked one of their servers. They said they're working on the issue. Cheers, Adrian