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too many syntax or protocol errors ????

Discussion in 'General Discussion' started by Cash, Jul 18, 2005.

  1. Cash

    Cash Well-Known Member

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    i can see below mesage running everyday when i tail -f /var/log/exim_mainlog



    2005-07-19 11:35:59 SMTP call from (host2.my-server-name.com) [127.0.0.1] dropped: too many syntax or protocol errors (last command was "rcpt TO:<???rtf@xavax.comi???s???sirweldon>")
    2005-07-19 11:36:23 SMTP call from (host2.my-server-name.com) [127.0.0.1] dropped: too many syntax or protocol errors (last command was "rcpt TO:<???rtf@xavax.comi???s???sirweldon>")
    2005-07-19 11:36:43 SMTP call from (host2.my-server-name.com) [127.0.0.1] dropped: too many syntax or protocol errors (last command was "rcpt TO:<???rtf@xavax.comi???s???sirweldon>")


    Anybody can tell m what's wrong?
     
  2. chirpy

    chirpy Well-Known Member

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    Go on, have a guess
    Usually happens when someone is manually trying to enter SMTP commands on port 25 and they have itchy fingers. Bsically, it means that whatever is connecting to your SMTP port(s) is using the wrong commands. Either what I said before, or some sort of port probe.
     
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