A security issue affects the following Ubuntu releases:
Ubuntu 4.10 (Warty Warthog)
The following packages are affected:
The problem can be corrected by upgrading the affected package to
version 2.1.3-1ubuntu17.2. In general, a standard system upgrade is
sufficient to effect the necessary changes.
This is an update to the recently published Ubuntu Security Notice
USN-74-1, which fixed the delivery of arbitrary mail to any MX host
which has an IPv6 address.
Unfortunately that upgrade revealed an error in the package upgrade
system which caused package installation to fail. After the failed
upgrade the Postfix server was not started again, thus no mail was
This new set of packages fixes the error encountered when upgrading.