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We have authentication enabled for all of our CGP accounts for sending email. This requires that the account holder authenticate to the server before submitting mail. I've tested by connecting to the SMTP port and using a FROM address within our domain (I'm informed by the server that this account needs to authenticate before sending mail). However, I've just started receiving SPAM that is address FROM an email account within the domain. Anyone have any ideas how that might be getting through?
Thanks,
Dave
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