From 71fafd9530395ba813bf8669340517a12700c769 Mon Sep 17 00:00:00 2001 From: Philip Hazel Date: Mon, 6 Mar 2006 16:05:12 +0000 Subject: Add the add_header modifier for use with all ACL verbs. --- doc/doc-txt/ChangeLog | 5 ++++- doc/doc-txt/NewStuff | 50 +++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 53 insertions(+), 2 deletions(-) (limited to 'doc') diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog index 6266ed56b..348ed483c 100644 --- a/doc/doc-txt/ChangeLog +++ b/doc/doc-txt/ChangeLog @@ -1,4 +1,4 @@ -$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.321 2006/03/02 12:25:48 ph10 Exp $ +$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.322 2006/03/06 16:05:12 ph10 Exp $ Change log file for Exim from version 4.21 ------------------------------------------- @@ -275,6 +275,9 @@ PH/53 This is related to PH/52, but is more general: for any failing address, PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that do this, and (what is worse) MTAs that accept it. +PH/55 Added the add_header modified to ACLs. The use of "message" with "warn" + will now be deprecated. + Exim version 4.60 ----------------- diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff index 06c676050..065ddd3d2 100644 --- a/doc/doc-txt/NewStuff +++ b/doc/doc-txt/NewStuff @@ -1,4 +1,4 @@ -$Cambridge: exim/doc/doc-txt/NewStuff,v 1.94 2006/03/02 12:25:48 ph10 Exp $ +$Cambridge: exim/doc/doc-txt/NewStuff,v 1.95 2006/03/06 16:05:12 ph10 Exp $ New Features in Exim -------------------- @@ -118,6 +118,54 @@ PH/17 The ACL modifier control=allow_auth_unadvertised can be used to permit a This control is permitted only in the connection and HELO ACLs. +PH/18 There is a new ACL modifier called "add_header" which does what its name + implies. It specifies one of more header lines that are to be added to an + incoming message, assuming, of course, that the message is ultimately + accepted. + + This modifier is permitted in the MAIL, RCPT, PREDATA, DATA, MIME, and + non-SMTP ACLs (in other words, those that are concerned with accepting a + message). Added header lines are accumulated during the MAIL, RCPT, and + PREDATA ACLs, with any duplicates being discarded. They are then added to + the message before processing the DATA and MIME ACLs, during which + further added header lines are accumulated, again with duplicates + discarded. Thus, it is possible to add two identical header lines to an + SMTP message, but only if one is added before DATA and one after. + + In the case of non-SMTP messages, new headers are accumulated during the + non-SMTP ACL, and added to the message at the end. + + The add_header modifier is available for use with all ACL verbs. In the + case of the WARN verb, add_header supersedes the use of "message" for + this purpose; for the other verbs, it provides a new facility. If both + add_header and "message" are present on a WARN verb, both are processed + according to their specifications. + + The add_header modifier acts immediately it is encountered during the + processing of an ACL. This is different to the (now-deprecated) use of + "message" on a WARN verb, where the action is taken only if all the + conditions are true. Notice the difference between these two cases on a + RCPT ACL: + + deny add_header = ADDED: some text + + + deny + add_header = ADDED: some text + + In the first case, the header is always added, whether or not the current + recipient is rejected. In the second case, the header is added only if + the recipient is rejected. + + If add_header appears more than once on an ACL statement, multiple + headers are added, provided that they have different content. (In the + case of WARN with "message", only the last value of "message" is used.) + + The facility for specifying where the new header is to be inserted, as + described for WARN with "message" in section 39.19 of the 4.60 manual, is + supported. + + Version 4.60 ------------ -- cgit v1.2.3