Description of problem:

Users are unable to authenticate to smtp service. Postfix (smtpd) is uanble to access sasldb2 database via sasl library.

Version-Release number of selected component (if applicable): postfix-2.8.4-1.fc15

How reproducible: install postfix, configure it to use sasl authentication, configure sasl library for application smtpd to use pwcheck_method auxprop with plugin sasldb (the default), give postfix (smtpd) read access to /etc/sasldb2

Steps to Reproduce:
1. configure postfix to allow smtp access from network
2. configure smtpd to use sasl authentication
3. configure email client to use this instalation for sending mail via SMTP with smtp authentication turned on

Actual results:
(in maillog):
postfix/smtpd[27873]: warning: SASL authentication problem: unable to open Berkeley db /etc/sasldb2: Invalid argument

Expected results:
(in maillog):
postfix/smtpd[8609]: 003A520047: client=unknown[x.x.x.x], sasl_method=LOGIN, sasl_username=username


Additional info:

This happens because postfix executables are are linked with db4-4.8 instead of libdb-5.1, and /usr/lib64/sasl2/libsasldb.so.2.0.23 (package cyrus-sasl-lib-2.1.23-18.fc15) is linked with libdb-5.1