[rt-users] weird "Draining Input" mail loop

Jesse Vincent jesse at bestpractical.com
Thu May 8 06:25:44 EDT 2003


On Wed, May 07, 2003 at 11:17:52AM -0700, bill at daze.net wrote:
> Yesterday afternoon, we started getting an e-mail to our abuse address
> that looks like a virus.  We were getting the same e-mail from the same
> person over and over so at first I thought their system was in a loop.
> When I looked into it futher, I discovered that we only received the
> message once.  The loop is within RT.  RT successfully delivers the
> message, however the following two lines appear in the maillog over and
> over (for each delivery):
> 

Bizarre. My only guess is that the spam you got was in a weird encoding
that caused RT to panic. do you have a copy of the original message that
we can have a look at?


> 
> timeout waiting for input from local during Draining Input
> 
> to="|/usr/local/rt3/bin/rt-mailgate --queue abuse-reports --action
> correspond --url http://localhost/", ctladdr=<##STRIPPED##> (26/0),
> delay=07:50:23, xdelay=00:03:02, mailer=prog, pri=1864651, dsn=4.0.0,
> stat=Deferred: prog mailer (/bin/sh) exited with EX_TEMPFAIL
> 
> 
> We have RT set to truncate attachements at 8k (if we could we would turn
> off attachements completely but since RT treats the body of the message as
> an attachment we can't so that):
> 
> 
> Set($MaxAttachmentSize , 8192); # 8k
> Set($TruncateLongAttachments , 1);
> Set($DropLongAttachments , 1);
> Set($SendmailArguments,"-oi -t -ODeliveryMode=b -OErrorMode=m");
> 
> 
> Looking in the mail queue, I see the message is about 392k:
> 
> 
> -rw-------  1 root  daemon  393671 May  6 16:15 dfh46NFISb055113
> -rw-------  1 root  daemon    1529 May  7 10:35 qfh46NFISb055113
> 
> 
> I deleted the message from the queue to kill the loop.
> 
> I'm wondering if the size of the message is causing the problem.  We have
> received other large messages about this size (truncated of course) while
> using 3.0.0 without any problems.  Any ideas?
> 
> Our configuration:
> FreeBSD 4.7 / rt3.0.2pre5 / Sendmail 8.12.6p2 / mysql 3.23.52 (InnoDB tables)
> Apache/1.3.27 (Unix) mod_ssl/2.8.11 OpenSSL/0.9.6g mod_fastcgi/2.2.12
> 
> Regards,
> Bill
> 
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> 
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