Possible solutions of your questions

Hello.

DNS servers:

ns1.hostven11.ru
ns2.hostven11.ru

what kind Of connection is it? Your domain is already configured on the server. 
please Do a trace to Your domain: start - run - enter cmd - in the black window enter tracert YOUR DOMAIN - after click to highlight - making enter - skopirovat here in the ticket

If You are experiencing zatrudina, view instructional videos http://ded07.net/helphost/tracert.htm

the Domain the server is:

dig e-zone.su @hostven11.ru

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.4 <<>> e-zone.su @hostven11.ru

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47181

;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; WARNING: recursion requested but not available

;; QUESTION SECTION:

;e-zone.su.                     IN      A

;; ANSWER SECTION:

e-zone.su.              14400   IN      A       46.29.2.50

;; AUTHORITY SECTION:

e-zone.su.              86400   IN      NS      ns1.hostven11.ru.

e-zone.su.              86400   IN      NS      ns2.hostven11.ru.

;; ADDITIONAL SECTION:

ns1.hostven11.ru.       14400   IN      A       46.29.2.50

ns2.hostven11.ru.       14400   IN      A       46.29.2.51

;; Query time: 0 msec

;; SERVER: 46.29.2.50#53(46.29.2.50)

;; WHEN: Mon Dec  7 19:26:28 2015

;; MSG SIZE  rcvd: 123

How long have you sent the domain to the server?

your email provider has not yet updated DNS, wait for their updates. The average update time 12-72 hours.

ok