What Does This Undeliverable Email Message Actually Mean?

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ProDave

ProDave

Twatt ™
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I sent an email to a group of friends.

It bounced back from 3 of them, with this message:

*********@btinternet.com>: host mx.bt.lon5.cpcloud.co.uk[65.20.0.49] said:
    522 IP FOUND IN DNSRBL (please check for IP address listing on common DNS
    RBL services) (in reply to MAIL FROM command)
 
It seems to only be the ones with an @btinternet email address that have bounced.
 
I don't think it's because I have their email address wrong.
 
the message did include a hyperlink to a blog page.
 
so that is domain host's mail server being blocked by BT then?

I just sent another test email, and it let than one through. So now it's unblocked again?

 
ProDave said:
the message did include a hyperlink to a blog page.
Click to expand...
Probably the blog link was to a website that was flagged as undesirable or maybe on a copyright infringement list in an ISP level filter.

Basically in the UK you can't go anywhere on the internet that's deem unsuitable and the mail you send is scanned and filtered. 

 
Marvo said:
Probably the blog link was to a website that was flagged as undesirable or maybe on a copyright infringement list in an ISP level filter.

Basically in the UK you can't go anywhere on the internet that's deem unsuitable and the mail you send is scanned and filtered. 
Click to expand...
depending on your OS , internet provider , and your ability to change your IP   ;)

but yes, I would agree,

Im still waiting to be confirmed which hand Im supposed to wipe my bum with,,,,,

 
ProDave said:
I sent an email to a group of friends.

It bounced back from 3 of them, with this message:

*********@btinternet.com>: host mx.bt.lon5.cpcloud.co.uk[65.20.0.49] said:
    522 IP FOUND IN DNSRBL (please check for IP address listing on common DNS
    RBL services) (in reply to MAIL FROM command)
 
It seems to only be the ones with an @btinternet email address that have bounced.
 
I don't think it's because I have their email address wrong.
 
the message did include a hyperlink to a blog page.
Click to expand...
this looks like somebody misconfigured a dns server somewhere and your email service's IP (65.20.0.49) has been added to the Real-time Block List that btinternet.com uses for spam filtering.

 

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