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New Web Server Blacklisted

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We have a brand new web server with a brand new IP address, the SPF and DKIM both pass when mail is sent to a Google account.  The PTR record also appears to be valid.

Mail to an has been blocked due to the IP being blacklisted - it doesn't appear on any blacklists when being checked.

Just getting the error F1C18140052: host[] refused to talk to me: 550 in the mail logs.


Forum Team
Forum Team

Hi @dlwhite4 👋

Welcome to our Community Forums and thanks for your post. 

Does the info here help at all? 

Forum Team

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Unfortunately not.  The IP address has no connection to Virgin Media - but your customers are unable to receive their order notifications from a website.  It may need escalating to another team, but there doesn't appear to be an contact details for this type of thing - like with Yahoo or Google etc.

Can you confirm if you're using a VPN dlwhite4? If so, does it work when not connected to it?


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This isn't a personal email issue - it is a dedicated server hosting a website. 

It is sending email into the virgin media mail servers that is the problem.

We wouldn't block any of this stuff what is giving you the impress that this is the server? Cheers 

Matt - Forum Team

New around here?

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I think that because it is exactly what your mail server is returning in the response to the email being sent:

F1C18140052: host[] refused to talk to me: 550 cmgw MXIN109 Reverse DNS for your IP is blacklisted here.

Hi dlwhite4,

Thanks for coming back to us. We have checked from our end and your websites IP address is not blacklisted. Can we ask what the name of your website is or what it is that you have set up if possible.

Thanks Jodi. 


How can you have possibly checked - the IP address was redacted out in my message with the error log to ensure this was kept private.

I am happy to provide this and will send you a PM if that is OK.

Forum Team
Forum Team

Hi @dlwhite4 👋.

Thanks for reaching out to us. We can certainly look into the issue with your IP address, we would need to bring you in for a private message to discuss.

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