On Sun, May 05, 2013 at 08:38:20PM +0200, Ralf Hildebrandt wrote:
> May 5 20:35:31 mail postfix/qmgr[2890]: warning: transport smtp failure --
> see a previous warning/fatal/panic logfile record for the problem description
> May 5 20:35:31 mail postfix/master[2888]: warning: process
> /usr/lib/postfix/smtp pid 2954 killed by signal 11
Thanks. Do you have a stack trace or core dump? If you have a Skype or
Google+ account, perhaps we can fix this off list... Drop me a note with
your contact details.
Otherwise, did you enable DNSSEC lookups? Did you enable "dane" security?
Was the destination for the deferred message a site that offers STARTTLS?
Any earlier log entries from the process 2954?
--
Viktor.
