Yes he means Null Sender.
A null sender reply can apparently flood the SMTP service to the point that
it has to be shut down and restarted in order to be able to send anything.
Mike Varre if you are still reading the thread check your logs for bogus
sender lines you may find several thousand entries because of the Null
sender. Turn off the refuse NULL <> Senders option in SMTP Security tab.
This will stop the Null sender from attempting to send the read reciept on
every port.
Jeff Johnston
Systems Support
Comcare Health Services
519-963-3651
----- Original Message -----
From: "Daniel Donnelly" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, December 21, 2000 11:36 AM
Subject: Re: [IMail Forum] Spike in log files
> Richard,
>
> I'm afraid I really don't understand what you are saying. What is a 'blank
> request to SMTP'? Do you mean a Null sender? Or a Null RCPT To:? Or an
empty
> body?
>
> What is a 'Read reply'? Read is completely different operation than Reply.
>
> What has this to do with log files? Can you show us the part of a log file
> (from both ends, if possible!) that illustrates the problem?
>
> Happy Holidays!
>
> Daniel Donnelly
> ________________________________________________________
>
>
> ----- Original Message -----
> From: "Richard Baroniunas" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, December 20, 2000 4:51 PM
> Subject: RE: [IMail Forum] Spike in log files
>
>
> > Hi,
> >
> > This is interesting because we just received a complaint from someone
who
> > indicated we were sending in blank requests to their SMTP server which
> turns
> > out that it is a IMail server. Both of us are using IMail 6.05 with the
> two
> > patches.
> >
> > The only difference was that it happened with no one else but them and
> that
> > they are using the Read reply for their emails. The funny thing is that
> he
> > sent it to the IMail forum which gets sent to thousands of folks!
> >
> > Any thoughts.
> >
> > Richard
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Daniel Donnelly
> > Sent: Wednesday, December 20, 2000 2:52 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: [IMail Forum] Spike in log files
> >
> >
> > Mike,
> >
> > How 'big' is the spike? How long is it lasting?
> > Since your first thought was spam, I wonder if the log file was 20%,
50%,
> or
> > 100% bigger than usual? And usually when it is spam, logs are affected
for
> > only for one day (maybe over 2 days worth of logs, if they get you early
> in
> > the evening and it continues past midnight) and if longer, is usually
> pretty
> > easy (as you probably know) spotted in the logs.
> >
> > I cannot say that I have seen a lot more or bigger attachments, but
those
> > things are certainly possible. But bigger/more attachments, should not
> mean
> > a bigger log file . More email, could.
> >
> > Did anything about the log change (a new service set to log, that was
not
> > before?)? Did you update IMail recently (new info is reported since
6.04,
> > and if implemented, does/can make log files bigger)?
> >
> > Happy Holidays!
> >
> > Daniel Donnelly
> > ________________________________________________________
> >
> >
> > ----- Original Message -----
> > From: "Mike Varre" <[EMAIL PROTECTED]>
> > To: "Imail User List" <[EMAIL PROTECTED]>
> > Sent: Wednesday, December 20, 2000 12:40 PM
> > Subject: [IMail Forum] Spike in log files
> >
> >
> > > Has anyone else seen a recent spike in the size of their log files?
My
> > > first thought was spam, but I dont see any other evidence of that.
Now
> > i'm
> > > thinking maybe its because its christmas time and people are sending
> more
> > > and more christmas type attachments and such.
> > >
> > > Any ideas?
> > > Michael Varre
> > > goChatPlus.com
> > > Project Engineer
> > > [EMAIL PROTECTED]
> > > 315.475.0500
> > >
> > >
> > >
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> > >
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> > >
> >
> >
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> >
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> >
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> >
>
>
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