Server Loads/hardware standards - recommendations

[Adri Koppes]

Julian,

> Glad you find greylisting to be useful, I certainly did.
> 
> The next thing for you to install is milter-null from 
> http://www.snertsoft.com/sendmail/milter-null/
> 
> This will kill all the "your message could not be delivered" 
> messages you get hundreds of. Completely.

>From the documentation I have read, milter-null works by adding a hash
value to each message sent and scans all DSN message for the existance
of the hash value and then compares it against the know values for
messages sent earlier.
As a result of this, milter-null will ONLY work if the message was send
by the same smtp server, which receives the DSN report.
When using a split send and receive smtp server, or multiple servers,
this means some or all DSN reports will be dropped.

Adri.