On 1/28/2011 12:51 PM, Jerrale G wrote: > We want the headers to correct show the mail system, with a bug in > centos, it shows localhost or 127.0.0.1 where it should show > mail.sheltoncomputers.com for PROPER, correct tracking. > > /etc/postfix/header_checks.pcre: > > s/(127\.0\.0\.1|localhost)/gi > REPLACE mail.sheltoncomputers.com > > What is wrong with the above? It is not replacing all instances of > 127.0.0.1 OR localhost with mail.sheltoncomputers.com. You can see > where we want these replaced in our headers.
First, understand that a pcre_table file is not sed (implied by the s/), the correct syntax is documented (man 5 pcre_table). Second, a header_checks REPLACE action will replace *the entire line* (man 5 header_checks) and you will lose information. Search and replace arbitrary strings in the middle of a line is not part of Postfix. It can be accomplished with a content_filter or milter, but is NOT recommended as it may change things you do not intend. "A better way"(tm) MAY be to PREPEND a header instead, i.e. "X-Tracking: mail.sheltoncomputers.com" Is this just a Received header or some other header? If you wish more help, more details are needed. Brian
