I doesn't matter what I change in the configuration, there is always the same problem:

I am able to successfuly send one email. Then Outlook can not give the SMTP server next one.

When I want to send one more, I can then see the connection in the SMTP server manager in IIS, but the connection is then (after 10 minutes) terminated and no email is sent. Do I have to give it some domain or whatever additional setting....?


Thanks for you patience
Jan