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-rw-r--r--program/include/rcube_smtp.php7
1 files changed, 7 insertions, 0 deletions
diff --git a/program/include/rcube_smtp.php b/program/include/rcube_smtp.php
index b45747661..61eebf3fa 100644
--- a/program/include/rcube_smtp.php
+++ b/program/include/rcube_smtp.php
@@ -195,6 +195,13 @@ class rcube_smtp
return false;
}
+ // RFC2298.3: remove envelope sender address
+ if (preg_match('/Content-Type: multipart\/report/', $text_headers)
+ && preg_match('/report-type=disposition-notification/', $text_headers)
+ ) {
+ $from = '';
+ }
+
// set From: address
if (PEAR::isError($this->conn->mailFrom($from)))
{