Migrating accounts and user data from one Zimbra OSE to another.

Zimbra : ClamAV - Updating Version

zimbra Cold Backup Server

http://wiki.zimbra.com/wiki/Harley77-Backup

Zimbra: stop and start amavis

zmamavisdctl stop && zmamavisdctl start

Zimbra: Mail delivery is very slow

su - zimbra
zmprov gcf zimbraLmtpPermanentFailureWhenOverQuota

By default it is set to FALSE but if you change to TRUE it will reject the email with a permanent failure if mailbox is over quota.

su - zimbra
zmprov mcf zimbraLmtpPermanentFailureWhenOverQuota TRUE

Zimbra docs

http://www.zimbra.com/community/documentation.html
http://www.zimbra.com/docs/os/latest/
http://www.zimbra.com/forums/installation/8726-centos-5-install-guide.html
http://www.howtoforge.com/zimbra-collaboration-suite-open-source-edition-on-centos