Emailing hotmail addresses

Yorkie1

Over the last few days I've had undeliverable messages when emailing two different individuals from my Talktalk webmail to their hotmail addresses. One recipient per email and nothing unusual in the messages at all.

The 3 error messages state: 550-"OU-002 (SNT0-MC1-F28) / (COL0-MC1-F7) /(BAY0-MC4-F32). Unfortunately, messages from [IP address] weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors."

I've looked on the link at OU-002, which says: Emails rejected by Outlook for policy reasons. Reasons for rejection may be related to content with spam-like characteristics or IP/domain reputation. If you are not an email/network admin please contact your Email/Internet Service Provider for help.

I am none the wiser; can anyone help, please?

Ectophile

The email service you use has been flagged up for spamming, so they are blocking all emails from your provider.

There is very little that you can do about it. It's really a dispute between your email provider and Microsoft. The recommendation in the response message is to raise a complaint with your provider.

Yorkie1

Thanks for that explanation.

I'll see if it works tomorrow, but otherwise it's ridiculous if all emails from a .tinyonline or .talktalk email address to a .hotmail address are being routinely blocked. Grr!