GHSA-RR8G-9FPQ-6WMG Tokio broadcast channel calls clone in parallel, but does not require `Sync`

The broadcast channel internally calls clone on the stored value when receiving it, and only requires T:Send. This means that using the broadcast channel with values that are Send but not Sync can trigger unsoundness if the clone implementation makes use of the value being !Sync. Thank you to...

Send-Only Postfix Server

Postfix is an MTA Mail Transfer Agent, an application used to send and receive email. In this tutorial, we will install and configure Postfix so that it can be used to send emails by local applications only. Why would you want to do that? If you’re already using a third-party email provider for...