Re: [Sqlgrey-users] Backup MX servers

[Lionel B. <lio...@bo...>]

Michel Bouissou wrote the following on 16.06.2005 09:41 :

>>Are we seeing an increase in the number of spam sending MTAs that don't
>>give up on the first attempt?
>>    
>>
>
>I believe so. And I also have seen a growing number of spams that retry after 
>about a minute. But not longer. Which means that greylisting duration should 
>probably not being set < 2 minutes.
>  
>

I've seen this too. The new default in 1.6.0 will be 5 minutes instead
of 1 minute (I've only witnessed retries from real MTAs after at least 6
minutes).

Lionel