host_aton() was not handling scoped IPv6 addresses correctly.

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

diff --git a/doc/doc-misc/WishList b/doc/doc-misc/WishList
index d3ce50b98cb737a8642b97f6c632de9c0b5d9fa0..9a23b3f306d3ed489bf90b11ad89c21dfebbb434 100644 (file)
--- a/doc/doc-misc/WishList
+++ b/doc/doc-misc/WishList
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-misc/WishList,v 1.6 2004/11/09 09:32:58 ph10 Exp $
+$Cambridge: exim/doc/doc-misc/WishList,v 1.16 2004/12/22 15:31:47 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


@@ -1319,6 +1318,10 @@ done.)
 ------------------------------------------------------------------------------
 
 (202) 10-Oct-03 S  -bvsomething to do a callout after the verify
 ------------------------------------------------------------------------------
 
 (202) 10-Oct-03 S  -bvsomething to do a callout after the verify

+
+For example: -bvc and -bvsc. The problem now (Nov 04) is that there are quite a
+few possible callout options that can be specified in an ACL, and they would
+have to be replicated here.

 ------------------------------------------------------------------------------
 
 (203) 14-Oct-03 S  verify=something to easily check for header presence
 ------------------------------------------------------------------------------
 
 (203) 14-Oct-03 S  verify=something to easily check for header presence


@@ -1372,7 +1375,9 @@ Unfortunately, this isn't quite as trivial as it seems.
 (215) 14-Nov-03 S  A way of turning off message-submission fix-ups
 
 Globally, and perhaps also via an ACL control so that it can be done on a
 (215) 14-Nov-03 S  A way of turning off message-submission fix-ups
 
 Globally, and perhaps also via an ACL control so that it can be done on a

-per-message basis.
+per-message basis. Is this still needed? Since this item was added to this
+list, default fixups for non-local messages have been removed, and control =
+submission has been added.

 ------------------------------------------------------------------------------
 
 (215) 26-Nov-03 M/L Conversion of IDNA domain names for logging
 ------------------------------------------------------------------------------
 
 (215) 26-Nov-03 M/L Conversion of IDNA domain names for logging


@@ -1413,14 +1418,10 @@ be able to set variables in routers like in acl's." This is effectively a
 radical suggestion for a complete re-design, and is therefore BIG.
 ------------------------------------------------------------------------------
 
 radical suggestion for a complete re-design, and is therefore BIG.
 ------------------------------------------------------------------------------
 

-(222) 19-Dec-03 S  Iterative option for dnsdb
-
-A way of getting a dnsdb lookup to chop off components until something is
-found: e.g. ${lookup dndsb-i{ns=a.b.c.d}} would look for nameservers for
-a.b.c.d, then b.c.d, etc.
-------------------------------------------------------------------------------
-

 (223) 22-Dec-03 S  Support SOA lookup in dnsdb lookups
 (223) 22-Dec-03 S  Support SOA lookup in dnsdb lookups

+
+This could be like zns, and climb up the tree till it hits a zone. Would the
+name of the zone be required?

 ------------------------------------------------------------------------------
 
 (225) 22-Dec-03 M  Add acl= to routers
 ------------------------------------------------------------------------------
 
 (225) 22-Dec-03 M  Add acl= to routers


@@ -1474,7 +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


@@ -1493,7 +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


@@ -1520,7 +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


@@ -1601,14 +1606,6 @@ A modifier that sets a delay between lines for multiline responses.
 Given that pids are reused non-cyclically these days, is this actually useful?
 ------------------------------------------------------------------------------
 
 Given that pids are reused non-cyclically these days, is this actually useful?
 ------------------------------------------------------------------------------
 

-(269) 26-May-04 U Run both a system and a user filter in test mode
-
-    exim -bF systemfilter -bf userfilter -f sender@dom < message
-
-This would allow testing the way the userfilter handles the system
-variables set by the systemfilter.
-------------------------------------------------------------------------------
-

 (270) 01-Jun-04 M Add headers at top and middle
 
 Various initiatives like SPF and DomainKeys require header lines to be added
 (270) 01-Jun-04 M Add headers at top and middle
 
 Various initiatives like SPF and DomainKeys require header lines to be added


@@ -1661,7 +1658,8 @@ Similar to the bounce and delivery warn message files.
 (280) 23-Jun-04 M A way of adding a header line after callout defer_ok
 
 This would record that, e.g., a sender domain verified, but the callout
 (280) 23-Jun-04 M A way of adding a header line after callout defer_ok
 
 This would record that, e.g., a sender domain verified, but the callout

-could not be done.
+could not be done. There are ways of fudging this, using ACL variables and
+"warn" statements.

 ------------------------------------------------------------------------------
 
 (285) 16-Jul-04 M Separate and independent log_selector for rejectlog
 ------------------------------------------------------------------------------
 
 (285) 16-Jul-04 M Separate and independent log_selector for rejectlog


@@ -1731,23 +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


@@ -1797,5 +1784,46 @@ does the *@ thing. A more sensible plan would be something like:
 
 That is, try the local part and * at each of the partial domain values.
 ------------------------------------------------------------------------------
 
 That is, try the local part and * at each of the partial domain values.
 ------------------------------------------------------------------------------

---- HWM 306 ------------------------------------------------------------------
+
+(307) 24-Nov-04 S Check the syntax of Message-ID: header lines
+
+This could be added to "verify=header_syntax" or, if the incompatibility is
+felt to be too great, an additional condition, or a sub-option, could be added.
+------------------------------------------------------------------------------
+
+(308) 24-Nov-04 S Add $body_longlinecount and $header_longlinecount
+
+These variables would hold the number of physical lines in the body and header
+that were longer than 998 bytes. This would be fiddly to implement because of
+the way Exim currently reads the input. It isn't just a trivial patch.
+------------------------------------------------------------------------------
+
+(309) 01-Dec-04 S/M Queue runners should get locks before forking
+
+If a queue-runner opened the -D file and took out the lock before forking, it
+would waste fewer resources if the message was already being delivered. But how
+often would this actually matter in practice?
+------------------------------------------------------------------------------
+
+(310) 06-Dec-04 S After "personal" save what matched
+
+The idea is to save the email address that actually was found in the message
+in a variable so it can be used (e.g. as the From: address in an autoreply).
+------------------------------------------------------------------------------
+
+(311) 07-Dec-04 ? More flexible SMTP response codes
+
+The requestor wanted to be able to specify, for example, 551 in an ACL deny
+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.)
+------------------------------------------------------------------------------
+
+(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.
+------------------------------------------------------------------------------
+--- HWM 312 ------------------------------------------------------------------

 ---------------------------- End of WishList ---------------------------------
 ---------------------------- End of WishList ---------------------------------