Here i have set up an account “pawan@onaxer.com” to catch all any mail not delivered to existing users in the domain “onaxer.com”, you can configure the account as a domain catchall.
If the users “admin@onaxer.com”, “webmaster@onaxer.com”, and “nobody@onaxer.com” don’t exist, and mail arrives for them, it will be delivered to the catchall account “pawan@onaxer.com”. This will increase the amount of spam delivered, and can lead to being blacklisted.
[root@map007]# su – zimbra
[zimbra@map007]$ zmprov modifyAccount pawan@onaxer.com zimbraMailCatchAllAddress @onaxer.com
To remove the catchall from an email account, unset the catchall address:
[root@map007]# su – zimbra
[zimbra@map007]$ zmprov modifyAccount pawan@onaxer.com zimbraMailCatchallAddress “”