[pmg-devel] [PATCH pmg-docs] pmg-mail-filter: add short docs for top-part-only and only-content

[Stoiko Ivanov <s.ivanov@proxmox.com>]

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
---
 pmg-mail-filter.adoc | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/pmg-mail-filter.adoc b/pmg-mail-filter.adoc
index 6e7b21f..e8a2500 100644
--- a/pmg-mail-filter.adoc
+++ b/pmg-mail-filter.adoc
@@ -300,11 +300,19 @@ Matches on infected mails.
 
 Match Field::
 
-Match specified mail header fields (for example, `Subject:`, `From:`, ...)
+Match specified mail header fields (for example, `Subject:`, `From:`, ...).
+Header fields of all mail-parts are taken into account by default, including the
+headers of any attached mails, or the meta-information provided for attachments.
+This can be restricted to only consider the headers of the top part of the mail.
 
 Content Type Filter::
 
-Can be used to match specific content types.
+Can be used to match specific content types. By default the content type
+information is taken from all available sources: The type determined by looking
+at the content ('file magic') of the file, the provided `Content-Type:`
+header of the attachment mail part, the type determined by looking at the suffix
+of the suggested filename. Optionally this matching can be restricted to
+consider the file contents.
 
 Match Filename::
 
-- 
2.39.5



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