Bill Kwok wrote: > Hi Eric, > > My situation was strange. Let me give you detail on my server: > <snip> > > All of them are the current version of qt, except I've also installed > Espinoza's qmail-toaster-1.03-1.3.8 so that I can use submission port. > > All processes were running fine. When I receive complaints from users, > I couldn't find any hint. The only thing looked abnormal is large > number of status 256 error logged at smtp log.
I've noticed some 256 errors too that I can't explain. Been wondering about them, but I haven't noticed any email not being received, so I haven't been able to track them down. I just figured they were spam. > To make sure they are not blocked by spamassassin or RBL, I added > certain IP, which I trusted, to my tcp.smtp( > <IP>:allow,RBLSMTPD="",RELAYCLIENT=""), but the situation didn't changed. Good move. You remembered to rebuild the cdb file, I presume. > To minimize the chance of timeout issue, my blacklists was changed to > include only one entry: > # cat blacklists > -r sbl-xbl.spamhaus.org The RBLSMTPD="" above should have taken care of turning off RBL checking. You remembered to restart qmail after this change, I hope. > In the beginning, I also thought that the status 256 should be sort of > timeout stuff. After further studying my smtp log, I found status 256 > in different situations: > > 1. The smtp log only showed a connection, but the process ended very > soon: > Nov30 18:19:43 tcpserver: status: 1/100 > Nov30 18:19:43 tcpserver: pid 8856 from [sender IP] > Nov30 18:19:43 tcpserver: ok 8856 [mydomain]:[my IP]:25 :[sender > IP]::47596 > Nov30 18:19:43 tcpserver: end 8856 status 256 > Nov30 18:19:43 tcpserver: status: 0/100 Weird. Was this from the 'trusted' IP? > 2. It logged CHKUSER has accepted sender and rcpt, but no email > delivered to user's mail box and nothing logged at send log: > Nov30 18:36:21 tcpserver: pid 9984 from [sender IP] > Nov30 18:36:21 tcpserver: ok 9984 [mydomain]:[my IP]:25 :[sender > IP]::53431 > Nov30 18:36:21 CHKUSER accepted sender: from <[sender] > <mailto:[EMAIL PROTECTED]> ::> remote <[sender server]:unknown:[sender > IP]> > rcpt <> : sender accepted > Nov30 18:36:21 CHKUSER accepted rcpt: from <[sender] > <mailto:[EMAIL PROTECTED]>::> remote <[sender domain]:unknown:[sender > IP]> > rcpt <[rcpt] <mailto:[EMAIL PROTECTED]> > : found existing recipient > Nov30 18:36:21 tcpserver: end 9984 status 256 Weird. Was this from a non-trusted IP? > 3. Some, but not all, CHKUSER rejected may show status 256 too: > Nov30 22:57:25 tcpserver: status: 1/100 > Nov30 22:57:25 tcpserver: pid 24256 from 89.138.229.34 > <http://89.138.229.34> > Nov30 22:57:25 tcpserver: ok 24256 [my domain]:[my local IP]:25 > :89.138.229.34::62008 > Nov30 22:57:30 CHKUSER rejected sender: from < [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>::> remote > <89-138-229-34.bb.netvision.net.il:unknown:89.138.229.34> rcpt <> > : invalid sender MX domain > Nov30 22:57:31 tcpserver: end 24256 status 256 > Nov30 22:57:31 tcpserver: status: 0/100 > > As you've mentioned, we should not use such a high setting for the smtp > softlimit in normal case. But in my case, I really need to. One more > thing to mention: my server need to support multi-language. > > Best regards, > Bill > I'm wondering if the DomainKeys bug might be the culprit. Have you disabled DK according to Alexey's instructions? # cd /var/qmail/bin # rm -f qmail-queue; ln -s qmail-queue.orig qmail-queue -- -Eric 'shubes' --------------------------------------------------------------------- QmailToaster hosted by: VR Hosted <http://www.vr.org> --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
