Please post in the correct forum. The Installation forum (which is where you've posted is for questions about installing Zimbra, this question belongs in the Administration forum - I'll move it for you.

Originally Posted by
hemal.pancholi
i have fresh setup zcs 8.0 and i have also configure zmdkim and spf record but spf record is verification is pass but dkim not verify.
It doesn't work for the very simple reason that you appear to have no DNS A or MX records for your domain, see below:
Code:
dig mx fabdeal.info
; <<>> DiG 9.9.2-P1 <<>> mx fabdeal.info
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32569
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;fabdeal.info. IN MX
;; AUTHORITY SECTION:
fabdeal.info. 569 IN SOA ns27.domaincontrol.com. dns.jomax.net. 2013021916 28800 7200 604800 600
;; Query time: 0 msec
;; SERVER: 192.168.1.11#53(192.168.1.11)
;; WHEN: Wed Feb 20 07:28:50 2013
;; MSG SIZE rcvd: 101
Code:
dig any fabdeal.info
; <<>> DiG 9.9.2-P1 <<>> any fabdeal.info
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46396
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 2
;; QUESTION SECTION:
;fabdeal.info. IN ANY
;; ANSWER SECTION:
fabdeal.info. 3521 IN A 202.191.148.252
fabdeal.info. 3520 IN NS ns27.domaincontrol.com.
fabdeal.info. 563 IN SOA ns27.domaincontrol.com. dns.jomax.net. 2013021916 28800 7200 604800 600
fabdeal.info. 3520 IN NS ns28.domaincontrol.com.
;; ADDITIONAL SECTION:
ns27.domaincontrol.com. 86320 IN A 216.69.185.14
ns28.domaincontrol.com. 86363 IN A 208.109.255.14
;; Query time: 1 msec
;; SERVER: 192.168.1.11#53(192.168.1.11)
;; WHEN: Wed Feb 20 07:28:56 2013
;; MSG SIZE rcvd: 182

Originally Posted by
hemal.pancholi
Please guide how to dkim authentication with smtp
The instructions for configuring DKIM are in the wiki article, if you follow those instructions you will have no problems.