Hello,
today I have tested SPF filter in Astaro. So I have used a remote client that uses a SMTP server NOT listed in my SPF record. I have configured the client with my company email address as sender (ie myemail@myemail.com). So I have sent an email from myemail@myemail.com to myemail@myemail.com.
ASG rejects the email, but it sends and NDR to my internal smtp mail server to myemail@myemail.com, that I received. Is it normal? I don't think so [:)]
I report the screenshot of mailmanager as attachment.
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