[Greylist-users] Handling servers that don't wait on their retries

[Ken Raeburn]

On Feb 26, 2009, at 05:49, William Blunn wrote:
> If I were in your position, I would be looking to design my incoming  
> mail system (in the way of dimensioning the hardware, and choice of  
> suitable MTA software (i.e. not Sendmail)) to cope with the "load"  
> of repeated incoming delivery attempts --- though why tempfailing  
> delivery attempts at RCPT time (i.e. before the strain of DATA)  
> should create heavy loading is beyond me.

Introducing a delay before sending the tempfail -- say, 30s -- should  
reduce the load caused by such servers if they're making the attempts  
serially.

Ken