The vulnerability of extended state codes in the Postfix mail server allows a hacker to trigger a service failure.

The vulnerability of extended state codes in the Postfix mail server is related to a single shift error. Exploiting this vulnerability could allow a malicious actor to cause service failures...

Postfix mail server IPv6 configuration unauthorized mail relaying

In specific configurations, for example if ran in chroot environment on IPv6 network, message relaying is not limited allowing relay to be used for SPAM sending...