I'm reaching every day the relay quota my server give me because of an user that MailEnable or something is created at my default domail. I realized that a file hola.SYS located at MailEnable/Config/Postoffices/{defaultDomain} is created by something. If this file exists smtp allows hola's user to send mail and it is using to spam.
To avoid this I created an schedule task to delete the file whether it exists but sometines it fails.
Does someone know why it happens or what security thing shuold I check?
User at default domain is created automatically (Hola.SYS)
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- Joined: Mon Nov 13, 2017 9:39 pm