exiscan-acl-4.33-20

Here comes exiscan-acl revision 20 for Exim 4.33.

http://duncanthrax.net/exiscan-acl/

One new feature: Multiple spamd server support, both for failover and 
load balancing purposes. From the docs:

---------------------------------------------------------------------
You  can   also  have   multiple  spamd   servers  to  improve
scalability. These can also reside on other hardware reachable
over the network. To specify multiple spamd servers, just  put
multiple  address/port  pairs  in  the  spamd_address  option,
separated with colons:

spamd_address = 192.168.2.10 783 : 192.168.2.11 783 : 192.168.2.12 783

Up to  32 spamd  servers are  supported. The  servers will  be
queried in a random fashion.   When a server fails to  respond
to the  connection attempt,   all  other  servers  are   tried
until  one succeeds.   If  no  server   responds,  the  "spam"
condition will  return DEFER.  IMPORTANT:  It  is not possible
to    use  the    UNIX   socket    connection   method    with
multiple  spamd servers.
---------------------------------------------------------------------

Multiple malware scanners are not yet in, this is a bit more complicated.

CHANGELOG:
------------------------------------------------------------
20  - added option to use multiple spamd servers, both for
       failover and load balancing purposes.

     - Fix signal handlers when using popen() for cmdline
       malware scanners.

     - adapted patch to exim 4.33
------------------------------------------------------------

regards,

/tom



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