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From: | Joe Maimon |
Subject: | Re: What do all these sendmail.mc options mean? |
Date: | Thu, 24 Feb 2005 16:58:39 -0500 |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b) Gecko/20050208 MultiZilla/1.7.0.1j |
Dan Nelson wrote:
2. What does the confMILTER_MACROS_CONNECT line do?The MILTER_MACROS_* variables tell sendmail which macro values it is allowed to send to milters. Specifically, the "b" macro is whatspamass-milter is looking for. The rest are sendmail's default values. I have no idea why sendmail defaults to just a few permitted macros; Ithink it should default to letting milters query any value.
I can think of two possible reasons.1) Sendmail sends all macro values its configured to send to the milter before each command. The milter does not actually query the sendmail proccess. A milter cannot change a macro value.
(there are patches whereby a milter can do that)2) This is a bit more dubious: Potential information leakage. All though they can in current milter implementation do much worse things to your email. (patches exist which can prevent a milter from rejecting email).
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