On 02/02/12 21:08, Rob Kampen wrote:
On 02/03/2012 06:35 AM, Ned Slider wrote:
On 02/02/12 15:44, Giles Coochey wrote:
On 2012-02-02 15:39, Ned Slider wrote:
I would recommend removing reject_unknown_client from your smtpd_sender_restrictions.
I think this will allow the mail through - but when I look at my logs just in the last week we have over 5400 rejects due to unknown client and only 24 of these are from this client - all the rest are junk.
Correct. I simply identified the problem and made a recommendation to fix it (i.e, prevent it from happening). As I said before there are more reliable ways to block spam than relying on correctly configured/working upstream DNS.
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Final question for the list - does anyone use "reject_unknown_client" - it has given me the most grief with legitimate clients that have poorly administered domains.
Hence my recommendation to remove it. But it's your server and your mail flow, ymmv :-)