On 23/10/2006 09:57, Daniel Tiefnig wrote:
> Yes. There is a problem with exims retry mechanism if a remote system is 
> greylisting based on recipient address, sender address and sender IP. As exim 
> gets a temporary error for "RCPT TO", it thinks the mailbox is currently not 
> available. Exim can't know that another e-mail in the queue with a different 
> sender address could actually get through to the recipient. With a moronic 
> greylisting setup (no auto-whitelisting) on the remote side and a lot of 
> emails this really is a problem. One may choose at which side the problem is, 
> though.

Is Exim designed to be clever, and not to attempt to deliver further 
messages to the same recipient? I thought it was just for hosts that 
were down, but I wonder if there's an option to disable this cleverness 
if it's not compatible with greylisting at remote sites.

Cheers,

John.


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