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From: Friedrich Weber <f.weber@proxmox.com>
To: pmg-devel@lists.proxmox.com
Date: Mon, 17 Feb 2025 12:55:17 +0100
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Subject: [pmg-devel] [PATCH pmg-docs v2] pmg-mail-filter: clarify matching
of Who objects
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In particular, explain that Who objects match against Envelope From
and Envelope To, not the From: and To: mail headers. This is
occasionally a source of confusion in enterprise support.
Signed-off-by: Friedrich Weber <f.weber@proxmox.com>
---
Notes:
changes since v1: (thx stoiko!)
- mention that these addresses are also visible in the logs, fix
phrasing
- fix commands (they are called `MAIL`/`RCPT`, not `MAIL TO`/`MAIL
FROM`)
pmg-mail-filter.adoc | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/pmg-mail-filter.adoc b/pmg-mail-filter.adoc
index 235f156..6e7b21f 100644
--- a/pmg-mail-filter.adoc
+++ b/pmg-mail-filter.adoc
@@ -265,6 +265,19 @@ We have two important 'Who' objects called 'Blacklist' and
'Whitelist'. These are used in the default ruleset to globally block
or allow specific senders.
+Note that 'Who' objects match against the mail addresses given during the SMTP
+dialog:
+
+* 'Who' objects in the 'FROM' category match against the sender's mail address
+ given in the `MAIL` command (the Envelope From).
+* 'Who' objects in the 'TO' category match against the recipient's mail address
+ given in the `RCPT` command (the Envelope To).
+
+These addresses are also visible in the logs and the
+xref:pmg_tracking_center[Tracking Center].
+
+If you want to match against the `From:` or `To:` header fields of the mail,
+use a 'What' object with type 'Match Field' instead.
[[pmg_mailfilter_what]]
'What' objects
--
2.39.5
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