Thanks for your answer. I change the pass for this acount temporary i stop postfix because after changes to mainn.cf and master.cf smtpserver is...
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Can you tell me if this tutorial its ok for my problem https://www.howtoforge.com/hardening-postfix-for-ispconfig-3
A large number of spam increases the use of cpu and database connections how can i fix it? I enable dkim and spf but nothing change. I need help
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