Nikolaos Milas: > Aug 3 15:09:46 dc postfix/master[13988]: warning: process > /usr/libexec/postfix/smtp pid 13997 killed by signal 11
If the program worked before this happened, suspect DLL hell.
Mixing different versions of Berkeley DB, upgrading a third-party
library (SASL, etc.) that introduces a new conflicting dependency,
upgrading a third-party library without recompiling Postfix for the
new API, and so on.
ldd(1) is your friend.
Wietse
