Re: message logging

Ivo Smits <[email protected]> Tue, 21 May 2013 17:45:04 +0200
Newsgroups gmane.mail.xmail.general
Message-ID <[email protected]>
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Hello,

It is also possible that someone is sending spam messages directly, not 
via your mailserver. If you have a spam message, you can usually find 
out if this is the case by viewing the e-mail headers (often visible in 
the "raw email source"). Is your mail server listed in the headers (in a 
Received: line)?

You could try to look into the XMail SMTP logs. Their location depends 
on the OS. If the spam mails are listed in these logs, something else is 
sending the emails to your XMail server and your XMail server is 
forwarding these spam messages. In this case you can find the IP address 
and possibly username of the sender. Possibly some account information 
for your mailserver has leaked, or the server may be configured as an 
open relay.

You can also use a tool like wireshark or tcpdump to monitor 
communications on tcp port 25, which would also tell you if your server 
is sending spam mails (if it is sending at that moment).

I hope this helps.

Ivo

Op 21-5-2013 16:26, Spyros Tsiolis schreef:
> Hello all,
>
> I have a situation with an installation where someone has managed
> to get hold of an e-mail address (the boss' actually) and is sending
> spam to the outside world.
>
> To an extend, I've managed to isolate the problem and it seems
> it's the mail server itself.
> I still don't know if it's XMail or an anti-spam solution I've adopted
> since about 2004.
>
> I would like to monitor the mail that goes out to the world.
> Can I do this with XMail ? Do I check the logs ? Which logs ?
> I've never done this before, so I would be greatful to any help.
>
> thank you,
>
> spyros
>
>
>
>
>
>
>
>
> ----
> "I merely function as a channel that filters
> music through the chaos of noise"
> - Vangelis
>
>
> _______________________________________________
> xmail mailing list
> [email protected]
> http://xmailserver.org/mailman/listinfo/xmail


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    Hello,<br>
    <br>
    It is also possible that someone is sending spam messages directly,
    not via your mailserver. If you have a spam message, you can usually
    find out if this is the case by viewing the e-mail headers (often
    visible in the "raw email source"). Is your mail server listed in
    the headers (in a Received: line)?<br>
    <br>
    You could try to look into the XMail SMTP logs. Their location
    depends on the OS. If the spam mails are listed in these logs,
    something else is sending the emails to your XMail server and your
    XMail server is forwarding these spam messages. In this case you can
    find the IP address and possibly username of the sender. Possibly
    some account information for your mailserver has leaked, or the
    server may be configured as an open relay.<br>
    <br>
    You can also use a tool like wireshark or tcpdump to monitor
    communications on tcp port 25, which would also tell you if your
    server is sending spam mails (if it is sending at that moment).<br>
    <br>
    I hope this helps.<br>
    <br>
    Ivo<br>
    <br>
    <div class="moz-cite-prefix">Op 21-5-2013 16:26, Spyros Tsiolis
      schreef:<br>
    </div>
    <blockquote
      cite="mid:[email protected]"
      type="cite">
      <div style="color:#000; background-color:#fff; font-family:times
        new roman, new york, times, serif;font-size:12pt">Hello all,<br>
        <br>
        I have a situation with an installation where someone has
        managed<br>
        to get hold of an e-mail address (the boss' actually) and is
        sending<br>
        spam to the outside world.<br>
        <br>
        To an extend, I've managed to isolate the problem and it seems<br>
        it's the mail server itself.<br>
        I still don't know if it's XMail or an anti-spam solution I've
        adopted<br>
        since about 2004.<br>
        <br>
        I would like to monitor the mail that goes out to the world.<br>
        Can I do this with XMail ? Do I check the logs ? Which logs ?<br>
        I've never done this before, so I would be greatful to any help.<br>
        <br>
        thank you,<br>
        <br>
        spyros<br>
        <br>
        <br>
        <br>
        <br>
        <br>
        <br>
        <br>
        <div><span><br>
          </span></div>
        <div>&nbsp;</div>
        <div>----<br>
          "I merely function as a channel that filters <br>
          music through the chaos of noise"<br>
          - Vangelis</div>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
xmail mailing list
<a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a>
<a class="moz-txt-link-freetext" href="http://xmailserver.org/mailman/listinfo/xmail">http://xmailserver.org/mailman/listinfo/xmail</a>
</pre>
    </blockquote>
    <br>
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_______________________________________________
xmail mailing list
[email protected]
http://xmailserver.org/mailman/listinfo/xmail

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