Marten Lehmann wrote: > Hello, > > our mailserver refused a certain email of a customer and when we tried > to track down the problem, we noticed that the server of the server > replied to our verification like this: > > mail from: <> > 250 Ok > rcpt to: [EMAIL PROTECTED] > 450 <[EMAIL PROTECTED]>: Recipient address rejected: Greylisted for 300 > seconds (see http://...) > > Might this be the reason for the sender verify to fail? If yes, what can > we do against it? > > Regards > Marten >
The above is only one of many false-positives. 'raw' sender verify should not be relied on as an all-or-nothing test. The Exim MLM on sesame, for example fails sender verify at 'recipient', yet is certainly on MY list of 'good guys'. You need either a more sophisticated crafting of sender verification, a 'weighted' reaction to its return codes, or both. Else use it only to add warning headers, not to reject. Bill -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
