[Fwd: Re: [dspam-users] Modification to dspam source for lowercase username with plussed addressing....]

[Benjamin Donnachie]

My dspam patch below should be useful for sites running cyrus-imap with
plussed addressing.

Take care,

Ben

-------- Original Message --------
> I think that should be "PlussedUserLowercase", and it might be too
> specific to use "plus" as the detail separator (qmail uses "-" by
> default, but from memory that's adjustable).

The option is intended to complement "EnabledPlusedDetail" - if that's
enabled, then the option PlusedUserLowercase forces the username section
to lowercase internally.

It was much easier to implement than I thought!

--- dspam.c     2006-04-07 20:07:23.322488264 +0100
+++ dspam.c     2006-04-07 22:50:45.443339392 +0100
@@ -1571,6 +1571,8 @@
     if (_ds_match_attribute(agent_config, "EnablePlusedDetail", "on")) {
       strlcpy(mailbox, username, sizeof(mailbox));
       ATX->recipient = mailbox;
+      if (_ds_match_attribute(agent_config, "PlusedUserLowercase", "on"))
+        lc (username, username);
       plus = index(username, '+');
       if (plus) {
         atsign = index(plus, '@');


I added the following to dspam.conf:

#
# When using plused addressing, forces dspam to internally use lowercase
# usernames.  Thus preserving case of the plused address.
#
PlusedUserLowercase     on


I've also got the following in imap.conf so that cyrus-imap also forces
the username section to lowercase, but leaves the case of the folder
(plused detail) alone:

lmtp_downcase_rcpt: 1

Ben