Home » Kerio User Forums » Kerio Connect » Failed SMTP login from hosted-by.ecatel.net with SASL method LOGIN (Security message)

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From the admin console, under Security tab, I receive many information messages saying :
Failed SMTP login from hosted-by.ecatel.net with SASL method LOGIN
SMTP: User client<_at_>mymailserver.com doesn't exist. Attempt from IP address

Those messages appears every 30 seconds trying to connect with wrong accounts who don't exist in our domain.
What is it ? How to block this unauthorized access ?

Also from trafic chart, I see many http connexion while there are only 75 users mailboxes. Please see the attached file. what is the http connexion ? Is it linked to our users mails ?

thanks in advance


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