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Old 25th June 2009, 11:09
till till is offline
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So I'm using gmail as my email relay with postfix and unfortunately it seems to have opened a large security hole for my server to be used for spam.
Why do you think that? Have you tested your server with an external mail relay check tool? Postfix setups are secure by default after you installed ISPConfig, so adding smtp_fingerprinting is not needed.
Till Brehm
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