From: simiyu mse
<kensimiyu@gmail.com>
To: robertyawe@yahoo.co.uk
Cc: KICTAnet ICT Policy Discussions <kictanet@lists.kictanet.or.ke>
Sent: Fri, 13 May, 2011 9:42:24
Subject: Re: [kictanet] Dirty IPs
@ Yawe et al,
The 554 error you get is actually an error indicating that your MTA
has been blocked. This could be because your IP is sending spam either
intentionally or (usually) unintentionally.
Your isp therefore no longer trusts your ip and has hence quarantined
it, for a while.
This is usually cleared up when you clean and patch up your LAN and
whitelist your IP, on the RBL lists or occasionally manually on your
ISP's smtp server.
This hardly is the mistake of the isp, rather a lapse in vigilance on
LAN
security issues.
--
i dislike capital letters
+254 722 278 106
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