Hello Klint, Friday, April 8, 2005, 1:18:52 PM, you wrote:
> On Fri, 8 Apr 2005 11:41:31 +1000, Clemens <[EMAIL PROTECTED]> wrote: >> Unfortunately SMTPRCV causes a computer RESET anywhere between 350 and >> 390 concurrent connections (visible in the firewall status window). >> Sometimes such a reset is not 'clean' and forces a chkdsk... > I would have thought that you shouldnt see this sort of reset ever. If > something's gone astray software wise, it should BSOD with a stop error. > Are you sure the hardware's ok? Hardware is fine. Computer will run for months until the next spoofed spam campaign. I have seen this happen 3 or 4 times over the last couple of months and each time it appears that it is the load on SMTPRCV that triggers the reset event. Event log tells me the 'previous shutdown was unexpected'.... >> While our link is saturated with those 'username checks', outgoing >> e-mail is not being delivered. > What do you mean by username checks? Maybe I can speed up the handling > of this. It appears many mail servers now check that a particular [EMAIL PROTECTED] exists before accepting e-mail from that user. I would imagine some percentage of the 'unknown user' log entries may also be attempts to deliver delivery failure messages. I have seen more than 90,000 per day.... logged... >> If there is a suitable hook anywhere in SMTPRCV, this is would be my >> preferred scenario: >> >> When 'danger' level of connections is reached: >> >> 1. Stop SMTPRCV >> 2. STOP SMTPDS >> 3. Delete all *.mri files in /domains >> 4. start SMTPDS >> 5. start SMTPRCV when all queued mail has been delivered or after 10 >> minutes or so. > Maybe setting smtprcv to below normal priority might help. As it is, SMTPRCV takes a long while to respond during such events. Setting smtprcv to lower priority would probably only result in a further increased failure/difficulty to receive legitimate e-mail... But, for now the barrage appears to be over again. I see just 60 or 70 connections to SMTPRCV. That is about average... -- Best regards, Clemens mailto:[EMAIL PROTECTED] This is the discussion list for the IMS Free email server software. To unsubscribe send mailto:[EMAIL PROTECTED] Delivered by Rockliffe MailSite http://www.rockliffe.com/mailsite Rock Solid Software (tm)
