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--- reference:outgoing_message_script [2024/03/21 10:44] – [Messages to be sent] paul
+++ reference:outgoing_message_script [2024/03/21 10:49] (current) – paul
@@ Line 33: / Line 33: @@
   * DeleteAfter - If this is set to 'none', then it is never deleted. If this is set to a string like YYYYMMDDHHMMSS then the message will be deleted after that time, otherwise it will be deleted after the specified number of seconds.
   * ReturnPath - (added in v8.6) - A new value for the ReturnPath (MAILFROM) of the message being sent
+====Examples====
+Example from a customer to change the ReturnPath depending on the 'From' address in the header
+<code lua>
+-- change ReturnPath with address-only according to address in From-Field
+-- Copyright 2024 AT Software und Rechnertechnik GmbH Muenchen
+-- last change 09.03.2024 AT/ath
+function NewMessage(AuthenticatedSender, ReturnPath, CreationDate, Subject, SenderIPAddress, FileLength, Priority, Headers)
+	actions = {}
+	SenderAddressTo = "..."
+	SenderSubject = "..."
+	MessageHeadersChanged = false
+	for k,v in pairs(Headers) do
+		if string.upper(v[1]) == "SUBJECT" then
+            SenderSubject = v[2]
+            if not SenderSubject then SenderSubject = "..." end
+		end
+		if string.upper(v[1]) == "TO" then
+		    SenderAddressTo = v[2]
+            if not SenderAddressTo then SenderAddressTo = "..." end
+		end
+		if string.upper(v[1]) == "FROM" then
+		    -- SenderAddressFrom = "Alexander <alexander@my-secondcompany.com>"
+			SenderAddressFrom = v[2]
+            if string.find(SenderAddressFrom, "@my%-secondcompany%.com") then
+                JustTheAddress = string.match(SenderAddressFrom, " <%g*@my%-secondcompany%.com>")
+                JustTheAddress = string.sub(JustTheAddress, 3, string.len(JustTheAddress)-1) -- remove trailing and ending brackets
+                -- OldReturnPath = "alexander@firstcompany.com"
+                OldReturnPath = ReturnPath
+                -- actions["returnpath"] = "alexander@my-secondcompany.com"
+                actions["returnpath"] = JustTheAddress
+                MessageHeadersChanged = true
+                print("Changed ReturnPath in message from '" .. SenderAddressFrom .. "' from '" .. OldReturnPath .. "' to '" .. JustTheAddress .. "' for message to '" .. SenderAddressTo .. "' with Subject '" .. SenderSubject .. "'")
+			end
+		end
+    end
+    if not MessageHeadersChanged then
+        print("Nothing changed in message from '" .. SenderAddressFrom .. "' for message to '" .. SenderAddressTo .. "' with Subject '" .. SenderSubject .. "'")
+    end
+	return actions
+end
+</code>

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