Hi all,if a user activates an ooo-message our exchange-server sends auto-replies even to spam the exchange-server itself judged to be spam (!!!). However, it does not sent auto-replies if the message contains a "Precedence: (bulk|junk|list)"-header.
As you can guess my exchange-admin told me to include a "Precedence: junk" header in every message classified as spam by spamassassin. I'm not sure I really want to do that, since such a header might already exist and I don't dare to alter headers that are already present.
Now my question: how does exim react if I do "add_header" (during acl) for a header that already exists?
What happens if a message has "Precedence: list" and I do "add_header = Precedence: junk"? Would exim alter the existing header, would exim add a second header or would exim skip adding that header?
What happens if a message has "Precedence: junk" and I do "add_header = Precedence: junk"?
Would it result in one or two header lines?fThe documentation doesn't mention the case that a header might already exist. But I think I could solve the issue using string-expansion anyway.
-- CU, Patrick.
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