On 18/11/2021 23:05, Bill Cole via Exim-users wrote:
Checks of the peer IP against a hostlist item which is a name
will cause one, as will matching the host_lookup option or
an explicit verify=reverse_host_lookup ACL condition.
So, if none of that happens, what will the Received header look like?
The default definition is:
"Received: "
"${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
"{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
"${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
"by $primary_hostname "
"${if def:received_protocol {with $received_protocol }}"
#ifndef DISABLE_TLS
"${if def:tls_in_ver { ($tls_in_ver)}}"
"${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
#endif
"(Exim $version_number)\n\t"
"${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
"id $message_exim_id"
"${if def:received_for {\n\tfor $received_for}}"
It's an option in the config, therefore changeable.
I doubt many people do.
The default was changed most recently in 2019, before 4.93 release.
--
Cheers,
Jeremy
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