sendmail-8.12.5使用してphp4.2.3からメール送信しています。 すると、最初のReceivedにapache@localhostというのが付いて しまいますが、これをwebmaster@my_domain.jpのようにする ことはできないでしょうか。あと、fオプション付けてメール送信すると、 X-Authentication-Warning: www.my_domain.jp: apache set sender to webmaster@my_domain.jp using -f というものがヘッダに付いてしまいます。/etc/mail/trusted-users にはちゃんとapacheを登録してあるんだけどどうしてでしょう？
This vulnerability is message-oriented as opposed to connection-oriented. That means that the vulnerability is triggered by the contents of a specially-crafted email message rather than by lower-level network traffic. This is important because an MTA that does not contain the vulnerability will pass the malicious message along to other MTAs that may be protected at the network level. In other words, vulnerable sendmail servers on the interior of a network are still at risk, even if the site's border MTA uses software other than sendmail. Also, messages capable of exploiting this vulnerability may pass undetected through many common packet filters or firewalls.