Another wish.

[users/heiko/exim.git] / doc / doc-misc / WishList

diff --git a/doc/doc-misc/WishList b/doc/doc-misc/WishList
index 391bde97877d0538a8a5f6fca36f88ae7d2d727f..039114e3b122369a5e9dea12d00b771ac6dbd063 100644 (file)
--- a/doc/doc-misc/WishList
+++ b/doc/doc-misc/WishList
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-misc/WishList,v 1.14 2004/12/07 14:23:56 ph10 Exp $
+$Cambridge: exim/doc/doc-misc/WishList,v 1.19 2005/02/15 16:39:19 ph10 Exp $

 
 EXIM 4 WISH LIST
 ----------------
 
 EXIM 4 WISH LIST
 ----------------


@@ -577,15 +577,6 @@ size. Directory scanning is expensive; is there any scope for caching? It would
 seem not (you don't often get two addresses to the same user).
 ------------------------------------------------------------------------------
 
 seem not (you don't often get two addresses to the same user).
 ------------------------------------------------------------------------------
 

-(4)  01-Jan-02  S  Option to reject if no From: or Date: header line
-
-Exim, in common with many other MTAs, inserts a From: or Date: header line if
-one is missing. (It also inserts a blank Bcc:, but that is no longer needed by
-RFC 2822 - it was by 822.) The suggestion is an option to give an error
-instead. This could be done by making it possible to detect these insertions in
-the acl_smtp_data ACL.
-------------------------------------------------------------------------------
-

 (6)  01-Jan-02  S  Option to disable the use of -t
 Dave C.
 
 (6)  01-Jan-02  S  Option to disable the use of -t
 Dave C.
 


@@ -767,9 +758,11 @@ Client: We need a variant of 'exim -bs' which would connect to a specified
 host, send AUTH/ATRN, and then accept incoming messages as usual.
 ------------------------------------------------------------------------------
 
 host, send AUTH/ATRN, and then accept incoming messages as usual.
 ------------------------------------------------------------------------------
 

-(50)  22-May-02 T  Add comment (duplicate address) to Envelope-To:
+(50)  22-May-02 S?  Add comment (duplicate address) to Envelope-To:

 
 

-This is just to minimize the confusion some people have.
+This is just to minimize the confusion some people have. However, it is not
+trivially easy to decide which to label as duplicates because of complications
+with redirection. I'm not convinced it will actually reduce confusion.

 ------------------------------------------------------------------------------
 
 (51)  07-Jun-02 S  Option to use another address in callout MAIL FROM
 ------------------------------------------------------------------------------
 
 (51)  07-Jun-02 S  Option to use another address in callout MAIL FROM


@@ -880,6 +873,12 @@ cleanly.
 
 22-Apr-04: Implemented for domains, addresses, and local parts. Hosts are
 too messy!
 
 22-Apr-04: Implemented for domains, addresses, and local parts. Hosts are
 too messy!

+
+The only sensible approach seems to be to allow IP address arguments only.
+Anything else should be diagnosed as an error. However, if a name appears in
+the list, a PTR lookup should be done. This may require a lot of refactoring
+in the code, because of the current assumption that were are (almost) always
+dealing with THE sending host.

 ------------------------------------------------------------------------------
 
 (74)  22-Jul-02 M  Extend -bV to do more semantic checking
 ------------------------------------------------------------------------------
 
 (74)  22-Jul-02 M  Extend -bV to do more semantic checking


@@ -1476,7 +1475,8 @@ and last item with ease; doing this using {if ...} would be quite difficult!"
 (230) 30-Jan-04 M  Find IP addresses of a domain's nameservers
 
 This needs some way of processing a list of things in a similar way, which
 (230) 30-Jan-04 M  Find IP addresses of a domain's nameservers
 
 This needs some way of processing a list of things in a similar way, which

-should perhaps be a more general facility.
+should perhaps be a more general facility. // This can now be done using the
+list facilities of dnsdb; verbose, but it can be done. //

 ------------------------------------------------------------------------------
 
 (231) 30-Jan-04 ?  -C has a number of problems when used for real
 ------------------------------------------------------------------------------
 
 (231) 30-Jan-04 ?  -C has a number of problems when used for real


@@ -1495,7 +1495,9 @@ course, security issues. This is not something I want to go into at present.
 (235) 02-Feb-04 T  Make smtp_accept_count available as a variable
 
 This is for use in ACLs. Of course, it is a snapshot of the count at the
 (235) 02-Feb-04 T  Make smtp_accept_count available as a variable
 
 This is for use in ACLs. Of course, it is a snapshot of the count at the

-start of the receiving process.
+start of the receiving process. As such, it could be confusing because if a
+connection lasts a long time, the "true" value could be very different. For
+this reason, I don't really like this idea.

 ------------------------------------------------------------------------------
 
 (236) 02-Feb-04 S  String in local_scan that's added to the binary version string
 ------------------------------------------------------------------------------
 
 (236) 02-Feb-04 S  String in local_scan that's added to the binary version string


@@ -1522,7 +1524,8 @@ library, because there's no crypto code in Exim itself.
 (240) 23-Feb-04 ? Some way to know if a ip is a mx for a given domain
 
 Some kind of iterative operation for dnsdb might be a general way of providing
 (240) 23-Feb-04 ? Some way to know if a ip is a mx for a given domain
 
 Some kind of iterative operation for dnsdb might be a general way of providing

-this.
+this. // This can now be done using the list facilities of dnsdb; verbose, but
+it can be done. //

 ------------------------------------------------------------------------------
 
 (242) 01-Mar-04 ? Run a filter from an expansion condition
 ------------------------------------------------------------------------------
 
 (242) 01-Mar-04 ? Run a filter from an expansion condition


@@ -1726,23 +1729,12 @@ callout cache in time for the sender's next attempt."
 What about ** lines?
 ------------------------------------------------------------------------------
 
 What about ** lines?
 ------------------------------------------------------------------------------
 

-(298) 25-Oct-04 S Debugging the daemon process only
-
-When there are daemon problems (e.g. it dies) it would be helpful to be able to
-turn on debugging that did not get passed on to any subprocesses.
-------------------------------------------------------------------------------
-

 (299) 25-Oct-04 S Options to make Sieve "keep" pass to next router
 
 Currently, "keep" saves in the mailbox. Probably need two options, for implicit
 and explicit keep commands.
 ------------------------------------------------------------------------------
 
 (299) 25-Oct-04 S Options to make Sieve "keep" pass to next router
 
 Currently, "keep" saves in the mailbox. Probably need two options, for implicit
 and explicit keep commands.
 ------------------------------------------------------------------------------
 

-(300) 25-Oct-04 S Option to lock out Sieve or Exim filter
-
-Currently, if allow_filter is set, either kind of filter is permitted.
-------------------------------------------------------------------------------
-

 (301) 27-Oct-04 M Use an "ACL" to filter logging
 
 This idea was for ACL syntax to be able to "accept" or "deny" individual log
 (301) 27-Oct-04 M Use an "ACL" to filter logging
 
 This idea was for ACL syntax to be able to "accept" or "deny" individual log


@@ -1826,5 +1818,35 @@ instead of 550, and also vary the defer code. The first digit, however, should
 remain fixed. In addition to main codes, enhanced status codes (RFC 2034) were
 requested. (As far as I can tell, they have never been highly popular.)
 ------------------------------------------------------------------------------
 remain fixed. In addition to main codes, enhanced status codes (RFC 2034) were
 requested. (As far as I can tell, they have never been highly popular.)
 ------------------------------------------------------------------------------

---- HWM 311 ------------------------------------------------------------------
+
+(312) 10-Dec-04 ? Shadow remote transports
+
+Unless a lot of work is done, this would be restricted to another remote
+transport. A similar effect could therefore be achieved with "shadow_hosts"
+which are like fallback_hosts but which operate on success.
+------------------------------------------------------------------------------
+
+(313) 21-Jan-05 ? Multiple queues
+
+Exim runs poorly if its queue gets too big. Various ways round this are all
+to some extent kludges. There has been a suggestion of using multiple
+directories instead of just "input". (Originally it was for a whole set of
+spool directories, but that introduces complications with the hint files.)
+On message arrival, somehow a selection of "input" must be made. Then queue
+runners must be startable for the different "queues". Don't forget that the
+"msglog" directory is also involved. Perhaps add a new level of indirection:
+/var/spool/exim/queue1/{input,msglog}, /var/spool/exim/queue2/....
+------------------------------------------------------------------------------
+
+(314) 15-Feb-05 M Multiple headers_{add,remove} for routers
+
+If headers_{add,remove} could be specified multiple times, it would be easier
+for those people that construct configs using .ifdef or .include, etc.
+------------------------------------------------------------------------------
+
+(315) 15-Feb-05 M String variables for use in filters.
+
+Currently, only numerical variables are supported.
+------------------------------------------------------------------------------
+--- HWM 315 ------------------------------------------------------------------

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