Blocked smtpauth

mauriciosouza10

• April 25, 2014 19:46

I'm getting these warnings: Time: Fri Apr 25 21:28:46 2014 -0300 IP: 80.146.33.135 (DE/Germany/p50922187.dip0.t-ipconnect.de) Failures: 5 (smtpauth) Interval: 3600 seconds Blocked: Permanent Block Log entries: 2014-04-25 21:27:48 dovecot_login authenticator failed for p50922187.dip0.t-ipconnect.de ([192.168.2.33]) [80.146.33.135]:1099: 535 Incorrect authentication data (set_id=cadastro) 2014-04-25 21:27:54 dovecot_login authenticator failed for p50922187.dip0.t-ipconnect.de ([192.168.2.33]) [80.146.33.135]:1099: 535 Incorrect authentication data (set_id=cadastro) 2014-04-25 21:28:11 dovecot_login authenticator failed for p50922187.dip0.t-ipconnect.de ([192.168.2.33]) [80.146.33.135]:1099: 535 Incorrect authentication data (set_id=cadastro) 2014-04-25 21:28:28 dovecot_login authenticator failed for p50922187.dip0.t-ipconnect.de ([192.168.2.33]) [80.146.33.135]:1099: 535 Incorrect authentication data (set_id=cadastro) 2014-04-25 21:28:45 dovecot_login authenticator failed for p50922187.dip0.t-ipconnect.de ([192.168.2.33]) [80.146.33.135]:1099: 535 Incorrect authentication data (set_id=cadastro) I have the ports 21, 2082, 2083, 2086, 2087, 2095, 2096, 587, 143, 110 blocked for all and allowed only for my country, then I would like to know where this is happening authentication attempt? I have to block a range of ip?

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  vanessa

  • April 26, 2014 05:43

  It's from SMTP, port 25.

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  mauriciosouza10

  • April 26, 2014 07:42

  [quote="vanessa, post: 1630171">It's from SMTP, port 25.
  Thanks for reply. Did blocking port 25 and let the 587 open only to my country, let's see if resolves.

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  mauriciosouza10

  • April 27, 2014 06:49

  But port 25 I can not block right? If I block I will not receive emails on the server right?

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  cPanelMichael

  • April 28, 2014 12:48

  [quote="mauriciosouza10, post: 1630602">But port 25 I can not block right? If I block I will not receive emails on the server right?
  Yes, the following post answers this question in detail: Blocking Port 25 Thank you.

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