CentOS Errata and Security Advisory 2006:0204
https://rhn.redhat.com/errata/RHSA-2006-0204.html
The following updated files have been uploaded and are currently syncing to the mirrors:
s390:
updates/s390/RPMS/mailman-2.1.5.1-25.rhel3.4.s390.rpm
s390x:
updates/s390x/RPMS/mailman-2.1.5.1-25.rhel3.4.s390x.rpm
https://rhn.redhat.com/errata/RHSA-2006-0204.html
The following updated files have been uploaded and are currently syncing to the mirrors:
s390:
updates/s390/RPMS/mailman-2.1.5.1-25.rhel3.4.s390.rpm
s390x:
updates/s390x/RPMS/mailman-2.1.5.1-25.rhel3.4.s390x.rpm