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Recent content by Sascha

  1. S

    Question Postfix-Spam: Connect from unknown host - invalid sender adress

    Hi, thanks for the answers, I´ve enabled "Relay Options" with "authorization is required" on "SMTP". The E-Mails comes from on "non-existing" user (for example: Gina85@...) to an existing user. If I see this right, the user are not authenticated. Mail Setting for my Domains => non-existing...
  2. S

    Question Postfix-Spam: Connect from unknown host - invalid sender adress

    Does somebody has any idea?
  3. S

    Question Postfix-Spam: Connect from unknown host - invalid sender adress

    Hi everyone, i have a litte problem on my hosting Server. I´ve installed Ubuntu 12.04.5 LTS‬ with Plesk Version 12.5.30 Update #44. Since few weeks ago I got many spam e-mails throw the server. So i look up to the logs and i found some entry: The sender e-mail adress does not exists on the...
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