Weird postfix/cyrus-sasl error...

[Amarendra Godbole]

Hi,

I use postfix as an smtp client to deliver email to our enterprise
smtp server. Since the smtp server needs authentication, I used cyrus
sasl with postfix and things worked fine. After a portupgrade, postfix
has stopped working, and gives some wierd authentication error.
Googling did not help much, and hence I am posting here. Relevant
details follow:

----------8<-----------------
Postfix version: postfix-2.4.1,1
Cyrus SASL version: cyrus-sasl-2.1.22

Postfix built with: (contents of makedefs.out)
SYSTYPE = FREEBSD6
AR      = ar
ARFL    = rv
RANLIB  = ranlib
SYSLIBS = -L/usr/local/lib -lpcre -L/usr/local/lib -lsasl2 -lpam -lcrypt
CC      = cc -DHAS_PCRE -I/usr/local/include -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I
/usr/local/include -I/usr/local/include/sasl
OPT     = -O2 -fno-strict-aliasing -pipe
DEBUG   =
AWK     = awk
STRCASE =
EXPORT  = AUXLIBS='-L/usr/local/lib -lpcre -L/usr/local/lib -lsasl2 -lpam -lcryp
t' CCARGS='-DHAS_PCRE -I/usr/local/include -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/u
sr/local/include -I/usr/local/include/sasl' OPT='-O2 -fno-strict-aliasing -pipe
' DEBUG=''
WARN    = -Wall -Wno-comment -Wformat -Wimplicit -Wmissing-prototypes \
       -Wparentheses -Wstrict-prototypes -Wswitch -Wuninitialized \
       -Wunused

main.cf has the following entries:
# cyrus sasl stuff
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/usr/local/etc/postfix/sasl_passwd
smtp_security_options =

sasl_passwd.db exists created with postmap hash: command

Error in the maillog shows:
May 31 14:35:12 zimbu postfix/smtp[49765]: warning: SASL
authentication failure: GSSAPI Error:  Miscellaneous failure (see
text) (open(/tmp/krb5cc_125): No such file or directory)
May 31 14:35:12 zimbu postfix/smtp[49765]: 1E722B895:
to=<xyz at xyz.com>, relay=smtp.foo.com[xx.xx.xx.xx]:25, delay=1.4,
delays=0.02/0.01/1.4/0, dsn=4.7.0, status=deferred (SASL
authentication failed; cannot authenticate to server
smtp.foo.com[xx.xx.xx.xx]: generic failure)

I don't quiet understand the first message of "no such file or directory".

I used exactly the same configuration earlier, and postfix was happily
working for the last year or so. Any pointers to fix this issue will
be appreciated. Thanks in advance!

-Amarendra