René Leboeuf wrote:

> The user sending emails is "trusted" by sendmail, and the sending
> program is located on the sendmail machine.
> 

No need to use SMTP then.  You should just be calling sendmail to drop
the emails into the queue.  And that should not be slowing down. 

> Mail is sent via PHPMailer. PHPMailer offers to send mail via PHP's
> mail() function, or by calling the sendmail program or using SMTP.
> SMTP may use persistent connections or not. All these modes were
> tested and they all slow down after a while.

They _all_ slow down after a while?  How many emails are you sending in
this way?  

It's easily tested.  Just generate a script with 10000 calls to the
mail() function (send to [EMAIL PROTECTED] with NNNNN = random
number).  If that goes through without slowing down, mail() and your
sendmail daemon are not to blame. 



/Per Jessen, Zürich


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