Stop inbound

[Julian Field]

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Just kill the incoming MTA process. Read the MailScanner init.d script
and you should be able to work out where it puts its PID file. Then when
you want to restart the incoming MTA, do a "service MailScanner startin"
or equivalent. The init.d script can be given
    start
    stop
    restart
    reload
    startin   <--- just start the incoming MTA
    startout   <--- just start the outgoing MTA
    status

AP wrote:

>Hey Guys,
>
>Is there a way that I can shutdown the reception of mail to the inbound
>queue while still allowing MailScanner to process what's currently in the
>inbound queue and still allow the delivery of mail in the post-processing
>queue?
>
>I know that I could turn off port 25 on the Firewall to the specific mail
>gateway but I would like to do this on the Mail Gateway itself.
>
>Here's my reason.  We sometimes early in the mornings (3-4am) get directed
>SPAM attacks that loads up our primary mail gateway.  Our inbound queues
>can get quite large and the primary mail gateway will continue receiving
>the mail without regard to how large the inbound queue is getting.  We can
>sometimes get 3000-5000 messages in the inbound queue while our secondary
>mail gateway is practically idle.
>
>I was thinking that I could write a mailqin monitoring script that would
>poll the queue every 5 minutes and if it has reached some kind of
>threshold, say 500-1000 messages, it would then stop the receiving of
>inbound mail until MailScanner had processed the queue down to some
>minimum, say 100 messages, before it would start back the receiving of
>mail.  That way the secondary mail gateway would start taking on some of
>the load and we could avoid some of the message delays that we get because
>of the backlog.
>
>Our primary and secondary mail gateways are fairly heavy duty boxes, Server
>class with dual hyper-threaded processors and lots of memory so it is not
>that the boxes are underpowered it's just that the secondary box is being
>under utilized.
>
>Any thoughts or suggestions would be welcome.  If there is a better way to
>handle this I would be interested to know.
>
>Thanks,
>
>AP
>
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>

--
Julian Field
www.MailScanner.info
Buy the MailScanner book at www.MailScanner.info/store

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Before posting, read the Wiki (http://wiki.mailscanner.info/) and
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Support MailScanner development - buy the book off the website!