Help! ....We are taking 120k msgs per day and climbing

[Ryan Weaver]

> From: MailScanner mailing listOn Behalf Of Michael Emdy
> Sent: Wednesday, June 16, 2004 12:07 PM
> To: MAILSCANNER at JISCMAIL.AC.UK
> Subject: Help! ....We are taking 120k msgs per day and climbing
>
> We're having excessively high loads (see below, let me know if
> anyone wants to see something else)  even though we have
> implemented MailScanner now using the XBL+SBL, and using
> whitelist/blacklists our volume continues to grow.  We need to
> take action to stop the flood of mail, we're getting hit by
> every trick in the book it seems but we can only do so much.
> The MailScanner gateway has offloaded and provided protection to
> our internal MS Exchange system but at this rate it won't last
> long either.

    If you are using sendmail, you can place this in your sendmail.mc and
regenerate the sendmail.cf, it will drop most of the SBL+XBL connections at
the connection level easing the load on MailScanner.

(no line break, tho there might be one in this email)

FEATURE(`dnsbl', `sbl-xbl.spamhaus.org', `"550 5.7.1 ACCESS DENIED to
<"$&f"> thru "$&{client_name}" by The Spamhaus SBL+XBL DNSBL ; Please visit
http://www.spamhaus.org/ for more information."')dnl


> Any suggestions would be greatly appreciated to help us optimize
> the Mailscanner gateway or actions we could take to help cut
> down our volume.
>
> Some questions we have is, should we reject or discard mail at
> the Sendmail level or take other actions to bounce mail?
>
> It appears that there are alot of processes in the queue that
> are fighting for cpu time, not sure what this is caused by,
> perhaps it's alot of open connections waiting for input.
>
> Below i've included detailed info in a text file (to avoid
> wasting bandwidth) to paint a picture of our system and maybe
> you can see a problem that i don't.
>
> http://www.ewebtricity.net/email-stats.txt
>
> thanks for your help in advance
>
> MTE
>

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