Brent Gardner wrote:
I've seen that SMTP authentication can be disabled for a given user by using:

vmoduser -s <email address>


Is it possible to disable SMTP authentication globally? I could use vmoduser to disable it for all users, but after that the SMTP authentication mechanism would still be listening, wouldn't it?

I've seen some connection attempts from Chinese IP addresses in the logs.

My toasters are used to filter incoming mail only; users aren't allowed to connect remotely to send mail. We have an Exchange server that handles that.


Thanks.

Brent Gardner


Never tried what you're asking. You could always install something like fail2ban and have it block that user in the firewall table after they attempt to brute force enough passwords.


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