Emails to Hotmail/Outlook

[#1]

Is there a resolution to this?

   This is an automatically generated Delivery Status Notification.      

Delivery to the following recipients failed permanently:

   * *********@hotmail.co.uk

Reason: A message that you sent to the following recipient could not be delivered due to a permanent error. ** The remote server ?? responded with: ** ********@hotmail.co.uk ??:?? This message was created automatically by mail delivery software on the server .

It appears to be a block on ALL plusnet emails to MS! 

[#2]

I'm having the same issue with Gmails!!!

We cannot send emails to the worlds biggest email providres!

[#3]

I have been having the same problem for months with email sent to hotmail, msn and outlook.

I identified that globalnet is on Spamhaus blocklist.

Can Plusnet support please help to resolve this which is seriously hampering my work?

[#4]

Refer to :

https://community.plus.net/t5/Email/Hotmail-rejecting-mail-from-PN-Diagnostic-Code-smtp-550-5-7-1/td...