You aren't by any chance using greylisting via pythonfilter? If so, check the version of the db files it uses with the `file` command. Best way to check to see if it MIGHT be greylisting DB issues is to check the log files when Courier-MTA is restarted.
Matt Miller wrote: > I've just finished building a new Courier server to replace an aging > mail server at my company and I'm running into the following problem. > I've seen a few references to this error on other posts on the list, but > never a resolution or really any replies at all. > > I've just built the new machine on a CentOS 5 x64 platform and installed > Courier 0.59. The previous version is a CentOS 4 x86 platform running > 0.58, but I haven't found anything in the documentation to suggest that > there are any incompatabilies or special considerations for moving > between these two versions. I've just copied the configuration files > and mySQL auth database and most everything (POP and IMAP, for example) > are working perfectly. > > SMTP sessions, on the other hand, are running into some issues. Below > are is a log of a test telnet session and below that what is written to > the /var/log/maillog file whenever this is attempted. > > A colleague and I spent a good bit of time playing with various filters > (including disabling all of them, which didn't resolve the issue) and > Googling for more information, but weren't able to make any progress. > We also recompiled and rebooted the system, also to no avail. > > Does anyone have any idea how to further troubleshoot this error? > > $ telnet mail.domain.com 25 > Trying x.x.x.x... > Connected to mail.domain.com (x.x.x.x). > Escape character is '^]'. > 220 mail.domain.com ESMTP > helo client.domain.com > 250 mail.domain.com Ok. > mail from: <[EMAIL PROTECTED]> > 250 Ok. > rcpt to: <[EMAIL PROTECTED]> > 432 Service temporarily unavailable. > > Apr 10 20:58:32 cp-mail01 submit: Invalid argument > > ------------------------------------------------------------------------- > This SF.net email is sponsored by the 2008 JavaOne(SM) Conference > Don't miss this year's exciting event. There's still time to save $100. > Use priority code J8TL2D2. > http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone > _______________________________________________ > courier-users mailing list > courier-users@lists.sourceforge.net > Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users > ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users