Mail configuration in the Servant

[yanezes]

When configuring the mail bills in Outlook Express or Outlook, in the shipment of mail the servant slow smtp but of 20 seconds in sending the mail, does he/she stay like in wait, do you know that what can happen is? I have revised all the configurations from Plesk and I have not given with the problem.

Greetings

P.D: In the servant this the configuration for defect.