Message not delivered

[VinceTaylor]

The same thing has just happened to me. Same IP address in the error message. Am trying other devices but this appears to be a problem caused by Virgin severs. 

[ravenstar68]

@VinceTaylor - Technically it's caused by the receiving servers as they are rejecting the mail.  HOWEVER
Looking at the IP address: 84.116.50.41

That looks to be one of the outbound servers on Virgin Media's email platform

C:\Users\timdu>nslookup 84.116.50.41
Server: one.one.one.one
Address: 2606:4700:4700::1111

Name: csmtpq4-prd-nl1-vmo.edge.unified.services
Address: 84.116.50.41

@Arissa_H Looking at the IP address in question it appears to be listed on SORBS Spam so I would suggest the email team need to take a look at what caused the listing and then get it removed

Here's the link to the MXToolBox Blacklist check

Network Tools: DNS,IP,Email (mxtoolbox.com)