today we got some strange emails which came without any sender adress:
Message from=<>, size=1, class=0, nrcpts=1, msgid=<201107210845.p6L8jBba001173-p6L8jBbb001173@gateway.ourdomain.com>, proto=SMTP, daemon=SMTP_MTA, relay=122-126-170-62.dynamic.hinet.net [220.127.116.11]
Session ID p6L8jBba001173-p6L8jBbb001173
Log ID 0008001173
Log Part 00
Those emails where marked as spam but I' m wondering why my Fortimail accepts emails without sender adress. Is there a mistake in my configuration? How can I block such emails without sender adress?
Thanks in advance,
hello and welcome.
Those messages are likely bounce notifications; try to find the relevant fields to that email within history logs to be sure.
as with empty return-path, it' s bad idea try to block them because you' re losing a valuable information.
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