Rich Felker@ShadSterling @c0dec0dec0de @siderea @warthog9 Absolutely 💯 and that's how my mail system works. It live pipes to a process owned by the recipient during SMTP delivery and that process can accept or reject with exit codes that give the sender a temporary or permanent error, leaving it their mail system's responsibility to retry or report error. No legacy intermediary relaying nonsense.
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