Golang tool to check SPF, DKIM, TLSA, and TLS settings for mailservers
Summary
The article discusses a Go-based tool named mailcheck that diagnose mail server configurations. It covers checks for MX, SPF, DKIM, DMARC, TLSA, TLS, and DNSSEC, with Nagios/Icinga output compatibility. It is targeted at SMB IT and network admins.