You have to know than the From adress you see in MailCleaner is the "Mail From" or "Enveloppe From" used by MTA to route messages. The From you see in your Mail Client can be different (spoofing or not, both case could happen), it is called "the Data From".
At MailCleaner level, whitelists and some others features works with the MTA From, and maybe you tried to do action by entering the Data From you seen in mail client.
I can't be more precise as we have no example here of message (need full headers) to analyze.
Who is online
Users browsing this forum: No registered users and 3 guests