CSF CC_ALLOW_SMTPAUTH Not Working As Expected

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Junior Member
Posts: 3
Joined: 30 Jan 2018, 14:53

Hey Guys,

I am sitting with a strange issue, we have a major problem with spam being sent from places like russia, india and so forth...
So to mitigate this, The simplest solution, is to block those countries. Obviously you can block places like russia, but then you get places like the EU, US, UK which poses another problem cause you have ligitimate traffic from there aswell which you cannot block...

To get past this, we tried activating CC_ALLOW_SMTPAUTH and setting it to CC_ALLOW_SMTPAUTH = "ZA" so only south african IP's can authenticate to send emails.
But I still keep seeing blocks in CSF for failed logins by other countries.
Should CC_ALLOW_SMTPAUTH in CSF not block any attempt to login? Why would there still be failed logins in the logs?

Any suggestions would be amazing.
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