postfix refuses to start with an empty hash_queue_names ("bad string
length 0 < 1"); only deferred has to stay unhashed for telegraf.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RywMtsL8qXG7GDY3MHq9Uh
postfix recreates the hash subdirectories of deferred and defer with
mode 0700, whose mask cancels the inherited telegraf acl, so
inputs.postfix failed with permission denied. Also drop the deprecated
smtpd_use_tls; smtpd_tls_security_level = may already covers it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RywMtsL8qXG7GDY3MHq9Uh
