X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/2c5db4fd26b481bff53f546eed83d373db4f130b..6723707404c72285565457b58c62afc6f1a9d36a:/doc/doc-misc/WishList?ds=sidebyside diff --git a/doc/doc-misc/WishList b/doc/doc-misc/WishList index 3f70a9d64..28ae7332f 100644 --- a/doc/doc-misc/WishList +++ b/doc/doc-misc/WishList @@ -1,8 +1,12 @@ -$Cambridge: exim/doc/doc-misc/WishList,v 1.64 2006/03/08 09:43:10 ph10 Exp $ - EXIM 4 WISH LIST ---------------- +This Wish List is now obsolete. The items it contains have been imported into +the Exim Bugzilla, which is where all new wishes should be added. This file is +no longer maintained. Some day it should be deleted. + + +=============================================================================== Even when it was first released, Exim 4 had a Wish List because not all the things suggested for it were implemented. The list has not stopped growing... @@ -167,8 +171,8 @@ So the admin can pass back a reason. mark david mcCreary "I use the syntax_errors_to feature to email a copy of the error message. -It would be helpful to have the X-Failed-Receipients header in there, -identifying which addreses(s) are the problem, so that I don't have to +It would be helpful to have the X-Failed-Recipients header in there, +identifying which address(es) are the problem, so that I don't have to parse the body of the email message to figure out which addresses." ------------------------------------------------------------------------------ @@ -295,16 +299,6 @@ David Carter So several warnings could be generated as the mailbox got bigger and bigger. ------------------------------------------------------------------------------ -(146) 15-May-2000 M Allow SMTP error codes in retry rules - -This would allow special handling of certain errors from certain hosts. In -particular, it would allow failing of certain 4xx codes. - -This is now available for 4xx responses to RCPT commands. Is anything more -needed? Apparently, yes; there's been a request for a similar feature for MAIL -commands. ------------------------------------------------------------------------------- - (148) 15-May-2000 S Warn recipient if message rejected for quota excession. Heinz Ekker @@ -626,7 +620,7 @@ Joachim Wieland Is this really worth it? A per-transport value is also suggested - that would mean remembering the value with each failed address and taking a minimum or -a maximimum (which?). +a maximum (which?). ------------------------------------------------------------------------------ (24) 21-Feb-02 ? A way of testing TLS using -bh @@ -821,7 +815,7 @@ logs the IP of the sending host in the => line?" Also requested was amount of data transmitted for a non-delivery attempt. ------------------------------------------------------------------------------ -(69) 03-Jul-02 T Log selector to log whoson checs +(69) 03-Jul-02 T Log selector to log whoson checks Matt Bernstein "I'd quite like a log_selector option which could spot you'd done a whoson @@ -995,7 +989,7 @@ a list defer. Peter A. Savitch OpenLDAP 2.1 is going to be more popular (2.1.9 is available with many -bug fixes). TLS-enabled LDAP is an interesting and usefull thing. +bug fixes). TLS-enabled LDAP is an interesting and useful thing. I can try to implement some things and send the patches, like with ldapi. @@ -1255,11 +1249,6 @@ This is an option that turns all hard bounces into soft bounces. The idea is that it can be used as a safety-net while testing configurations. Instead of a local bounce, the message stays on the queue; instead of 5xx SMTP responses, 4xx ones are given. - -The ability to do the opposite - turn 4xx into 5xx under certain circumstances -might also be useful (e.g. after a certain time). This might best be done by -extending the retry logic to recognize 4xx as a special error. (This is now -done.) ------------------------------------------------------------------------------ (202) 10-Oct-03 S -bvsomething to do a callout after the verify @@ -1297,7 +1286,6 @@ permanent ones after some fixed time. ------------------------------------------------------------------------------ (209) 31-Oct-03 S a way of making crashes in pipe commands temporary errors - ------------------------------------------------------------------------------ (210) 31-Oct-03 S runtime option to change the daemon name used for tcprwappers @@ -1314,7 +1302,7 @@ option, for use with multiple Exim daemons. See also 333. ------------------------------------------------------------------------------ -(214) 05-Nov-03 S Put the wild part of local part prefix/suffx in variables +(214) 05-Nov-03 S Put the wild part of local part prefix/suffix in variables Unfortunately, this isn't quite as trivial as it seems. ------------------------------------------------------------------------------ @@ -1330,13 +1318,6 @@ e.g. exigrep, eximstats, will be automatically handled if the logs are changed.) ------------------------------------------------------------------------------ -(216) 27-Nov-03 S Option to bounce if required TLS doesn't happen - -This is for the smtp transport with hosts_require_tls set. Currently, it -defers. Possibly the best approach is to make the error one that can be seen by -the retry logic. ------------------------------------------------------------------------------- - (217) 27-Nov-03 M A function to pass back variables from Perl This is a function that can be called from Perl, to take a name and a value and @@ -1602,12 +1583,6 @@ For example: mainlog_selector and rejectlog_selector, with log_selector setting both of them. ------------------------------------------------------------------------------ -(286) 21-Jul-04 M Distinguishing a larger number of errors - -For instance, detecting "connection reset by peer" (ENETRESET or ECONNRESET) -might be useful. ------------------------------------------------------------------------------- - (288) 10-Aug-04 M Option for verify to require MX e.g. verify=sender/require_mx @@ -1633,7 +1608,7 @@ how useful this would actually be in practice. (292) 13-Aug-04 M Overall timeout for message reception -A client could in priciple keep an SMTP connection open for a very long time by +A client could in principle keep an SMTP connection open for a very long time by trickling in data very slowly. Also, after message_size_limit is exceeded, Exim continues to swallow the data (though it does not write it to disk) until the end is reached. Again, the connection could be held open for a very long time. @@ -2019,9 +1994,66 @@ code, because of caching. Probably means we have to invent ewildlsearch and enwildlsearch. ------------------------------------------------------------------------------ -(350) 28-Feb-06 S Additional errors for retry rules +(351) 31-Mar-06 ? Allow some/all/a few internal variables to be set + +The original idea was to allow "set authenticated = x" to pretend a connection +is authenticated after other conditions are true. This can, of course, be +packaged up using macros in other ways. Setting other variables could cause +problems. +------------------------------------------------------------------------------ + +(352) 04-Apr-06 S Add +accept_defer for host lists (and maybe others) + +At present, a defer causes a delivery defer. For non-critical ACLs there are +times when it may be better to accept. See also 226 and 289. +------------------------------------------------------------------------------ + +(354) 30-Jun-06 ? Extensions to SMTP error codes + +A number of ideas arose following a discussion on the mailing list. I record +them here so that they don't get lost. The motivations were to support the 551 +bounce code and enhanced status codes. Suggestions are to add a new ACL +feature, possibly one of: + + errorcode = 511 + control = errorcode=551 + message = 551 xxxx + +where in the last case, it's recognized by being 3 digits. In all cases, the +first digit must be "right" for the circumstance - ignore or fault if not? + +To handle ESC, perhaps a new variable called $smtp_errorcode, settable by an +option in a router when it fails, would do the trick. It could be used in any +of the above modifiers. +------------------------------------------------------------------------------ + +(355) 30-Jun-06 ? Facility to permit experiments with SMTP extensions + +This is what was suggested: + +- adding some expansion variables: $ehlo_extensions (which will + hold the remote server supported smtp extensions announced + in the ehlo) and $rcpt_arguments with any RCPT extra argument + +- a main configuration option for adding ehlo extensions to the + ehlo response, like: + + extra_ehlo_extensions = XFOO : XBAR + +- a extra option for the smtp transport to add arguments to + the RCPT TO command, like: + + rcpt_args = FOO=BAR (will make exim issue RCPT TO: FOO=BAR + when delivering that message) + +- a new acl for unknown smtp commands -(i) Unexpected connection close; (ii) mail_4xx. +This should be very simple to implement and will allow to make +some experiments and implement custom extensions, i.e. one to +known if remote client will redirect on 551 or not. Also the acl +for unknown smtp command could be used for other purposes, like +to detect and react to some kiddies that send things like +http://... on the smtp port. ------------------------------------------------------------------------------ ---- HWM 350 ------------------------------------------------------------------ +--- HWM 355 ------------------------------------------------------------------ ---------------------------- End of WishList ---------------------------------