Security researchers have discovered a new critical vulnerability in the OpenSMTPD email server. An attacker could exploit it remotely to run shell commands as root on the underlying operating system.

The Linux-based ELF backdoor is targeting cloud workloads across providers, using SMTP-based C2 and typosquatted Alibaba ...

I currently have an Exchange 5.5 server that receives it's internet mail from an IIS 5.0 SMTP relay.<BR><BR>Spam is an increasingly large problem, so I'd like to look at putting in an SMTP relay that ...