OpenSSL fix empty tls_verify_certificates.

[exim.git] / doc / doc-txt / experimental-spec.txt

diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt
index f419bfedf3a73f5de8addd0d011ee855860337d8..8d1ebef13b227d987dabb449566a93aa75c71383 100644 (file)
--- a/doc/doc-txt/experimental-spec.txt
+++ b/doc/doc-txt/experimental-spec.txt
@@ -598,10 +598,29 @@ through to eg. SpamAssassin.
 If you want to pass even more headers in the middle of the
 DATA stage you can set
   $acl_m_dcc_add_header
 If you want to pass even more headers in the middle of the
 DATA stage you can set
   $acl_m_dcc_add_header

-to tell the DCC routines add more information; eg, you might set
+to tell the DCC routines to add more information; eg, you might set

 this to some results from ClamAV.  Be careful.  Header syntax is
 not checked and is added "as is".
 
 this to some results from ClamAV.  Be careful.  Header syntax is
 not checked and is added "as is".
 

+In case you've troubles with sites sending the same queue items from several
+hosts and fail to get through greylisting you can use
+$acl_m_dcc_override_client_ip
+
+Setting $acl_m_dcc_override_client_ip to an IP address overrides the default
+of $sender_host_address. eg. use the following ACL in DATA stage:
+
+  warn    set acl_m_dcc_override_client_ip = \
+    ${lookup{$sender_helo_name}nwildlsearch{/etc/mail/multipleip_sites}{$value}{}}
+          condition = ${if def:acl_m_dcc_override_client_ip}
+          log_message = dbg: acl_m_dcc_override_client_ip set to \
+                        $acl_m_dcc_override_client_ip
+
+Then set something like
+# cat /etc/mail/multipleip_sites
+mout-xforward.gmx.net           82.165.159.12
+mout.gmx.net                    212.227.15.16
+
+Use a reasonable IP. eg. one the sending cluster acutally uses.

 
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