Weird Problem with MailScanner

[Gareth]

MensajeI would say it is seriously in need of a memory upgrade. The minimum
recomendation is 1GB.
  -----Original Message-----
  From: mailscanner-bounces at lists.mailscanner.info
[mailto:mailscanner-bounces at lists.mailscanner.info]On Behalf Of Damian Rivas
  Sent: 19 October 2007 17:22
  To: mailscanner at lists.mailscanner.info
  Subject: Weird Problem with MailScanner


  Hi there, I'm having a really weird problem and as I am a n00b it gets a
bit more difficult to find a solution.

  I'll explain the details first:

  Since 6 months ago, I am the System Administrator of a Tourism Agency. We
use an E-mail Scanner in a server with the following characteristics:

  Processor: Pentium II 233 Mhz.
  RAM: 128 MB
  OS: Linux Slackware 9
  MailScanner version: 4.55.10

  This E-mail Scanner use the MailScanner with Sophos Antivirus and Spam
Assasin to filter spam and scan incoming and outcoming mails for viruses
which are then redirected to an internal MS Exchange Server or to the
Internet, respectively by sendmail.

  One month ago, the server started behaving erratically. Instead of
checking and sending mails as it normally did, it started queueing mails
massively and therefore accumulating great quantities of them, it got up to
10000 mails queued up in a single day, therefore, no one recieved a single
mail. After many pointless attempts to repair this problem and seeing that
the Travel Agents were getting a bit mad, I decided to redirect the MX
server of our domains in the DNS to the firewall, so that our E-Mail Scanner
server didn't recieve more mail, which was only going to contribute to
making the problem worse, more incoming mails, more queued mails.

  With this, the server started sending the queued mails and mail traffic
was restored with the difference that mails weren't scanned at all(they were
no longer passing through the MailScanner Server). When the mail queues were
empty again, I tried to reestablish the scanning service, but the problem
appeared again.

  I don't have a clear idea of what can be causing this problem. The machine
is pretty old, but the former administrator told me that it had never had
problems. I think that perhaps we are being Spam Bombed and perhaps the
System poor processing capabilities cannot resists the increasing traffic
and therefore it gets stuck and keeps enqueueing mails.

  Please if anyone can guide me I'll appreciate it,
  Sorry if my English is a bit rusty, it is not my native language,
therefore if you need me to be more clear or try to give more details of
something, don't hesitate to ask so.
  Thanks in advance!
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