hi-

if i'm interpreting correctly, the documentation for cleanup(8) says that (Resent-) From:, To:, Message-Id:, and Date: headers are always inserted:

The cleanup(8) daemon always performs the following transformations:

ยท Insert missing message headers: (Resent-) From:, To:, Message-Id:, and Date:.
[...]

the postconf(5) documentation for always_add_missing_headers and local_header_rewrite_clients seems to say this is only the case for earlier than postfix 2.6. my experience with 2.11 just now supports this.

is the cleanup(8) documentation a little behind the current behavior?

sort of related, the postconf(5) documentation for local_header_rewrite_clients doesn't mention adding missing headers, but setting

local_header_rewrite_clients = check_address_map cidr:${table_directory}/local_header_rewrite_clients.cidr

does add From: and Date: [i only tested those two]. could the documentation for local_header_rewrite_clients be made to more closely reflect the documentation for always_add_missing_headers and cleanup(8)?

-ben

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