[leafnode-list] received bogus greeting (502): Access Denied yet can telnet to port 119 fine

[Arthur Marsh]

Hi, I've been getting errors of the form:

error: news.internode.on.net: received bogus greeting (502): 502 
news.astraweb.com: Access Denied

from fetchnews, but I can do:

$ telnet news.internode.on.net 119
  DNS Lookup...  Trying 216.151.153.138...  Reverse DNS Lookup... (OK)
200 news.astraweb.com NNRP Service Ready (posting ok) (yEnc enabled).
quit
205 Transferred 71 bytes in 0 articles, 0 groups.  Disconnecting.

Any suggestions on how to debug this further?

Arthur.