Recent content by stou

@Bitpalast is right. When you whitelist all Cloudflare IP ranges in Fail2Ban, you create a potential security vulnerability because any attacker using a Cloudflare-proxied connection would be exempt from Fail2Ban's protection mechanisms. The reason that this problem occurs is your proxied dns...

bl.spamcop.net gives false positive on outlook365 these days..

The correct path is: strings /usr/lib64/httpd/modules/mod_ssl.so | grep -i sni

Hey Christian, Thanks for this solution. Is this still valid? In this way you stopped sending through webmail. Are you aware that?

Also i think with this way you are losing the check of outgoing mail messages per hour. The correct way should be to be able to use SMTP relay when the email address it is present, even if there is no mailbox.