[EMAIL PROTECTED] wrote:

>Well, when the Qmail of Central Server send a list (for example) about
>45.000 email subscribers, the Mail Relay's servers send about of 20
>email at the same time. Its very slowly! But, when the Central Server
>finish, the qmail of Mail Relay send 500 mails at the same time. Why?

Because qmail-send is single-threaded, and must split its attention
between processing new messages and passing processed messages to
qmail-rspawn.

>How can I do for the Qmail process send/receive have the same
>"priority"? I need the qmail send a constant of 500 mails.
>
>Any idea?

Don't pass the deliveries off to relays. In doing so, you're taking
one message with 45000 recipients and making it 45000 messages with
one recipient.

You might also want to set up a second qmail installation on the
central server to do nothing but handle messages injected via
SMTP. That will allow the qmail-send sending the ezmlm messages to go
full speed by offloading bounce messages delivery to another
qmail-send process.

-Dave

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