On Thu, Jan 12, 2023 at 01:49:33PM -0500, post...@ptld.com wrote: > My solution... > > main.cf: > smtp_header_checks = pcre:/etc/postfix/header_checks_smtp > > > /etc/postfix/header_checks_smtp: > /^Received:/ IGNORE > /^X-Originating-Ip:/ IGNORE
That's a rather radical "solution". More typically one would just drop "Received" headers known to be added by the local MTA (matching the hostnname in "by" clause explicitly). As for "X-Originating-Ip:", if you're the one not adding it, why remove it? And if you are adding it, then why, if only to remove it? -- Viktor.