my mk don't send email (log). Where is the problem?

show us your configuration of this feature

server: xx.xx.xx.xx (mail server, is public ip)
from: myemail


but for me the problem is that my mk not surf also if the dns are correct

How to send email to servers that require authentication?

How to send email to servers that require authentication?

You don't.

Three choices, either route the mails via a normal ISP SMTP server or make use of a paid SMTP service which will deliver the mail for you or configure the SMTP server to accept mail from your IP address.

Failing all this, you could even consider using a pigeon..........

How to send email to servers that require authentication?

no