@Martin - spam often has invalid headers (attempting smuggling) and our x-original-to mangler adds it after the invalid header, but our lp parser stops at the invalid point. So this is pretty reliable and won't reject valid mail AFAWCT.
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@Martin - spam often has invalid headers (attempting smuggling) and our x-original-to mangler adds it after the invalid header, but our lp parser stops at the invalid point. So this is pretty reliable and won't reject valid mail AFAWCT.