On Thu, Apr 29, 2010 at 12:38 PM, Simon Mbuthia <simon.mbuthia@gmail.com>wrote:
Hi guys,
I've been receiving complaints lately from my users about messages not getting to them and on investigating, I have found that a number of local ISPs have blacklisted mail servers. Is it just me or is it common among admins on the list? I have configured my mail server to reject messages relayed by mailservers blacklisted by spamcop, spamhaus and barracuda and respond with a message explaining that action. Now this has got me wondering whether I have made my security settings too tight or what...
Is that too drastic a security measure that I have taken?
I used to do the same when I used to be Sysadmin, with one exception: I'd find out ALL the subnets used by ISPs in KE and exempt those from the filtering. I'd still monitor and look at my stats for culprits and contact them to address the issues, and yes, I was very much willing to cooperate with them towards addressing the issues. I have a friend who is using Onecom's mail servers for outbound, and quite often the servers are blacklisted. One mail I shot to onecom's support about three weeks ago still remains unanswered to date! Demographics have changed, I believe. -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ "If you have nothing good to say about someone, just shut up!." -- Lucky Dube