Zimbra installation and configuration (internal use only)

nagendra

Guys need urgent help
we change the Zimbra mail server IP from 192.168.4.XXX to 192.168.1.XXX now am unable to recieve emails from outside domain
please help

cdaffara

@nagendra Zimbra needs just a few things to change the IP address:

hostname must match the IP address (check that /etc/hosts is correct, and reports the right name of the zimbra machine)
you must have the right IP address in zimbraMtaMyNetworks:
as zimbra user,
zmprov ms <yourmailserverfullname> zimbraMtaMyNetworks '127.0.0.1/8 192.168.4.0/16 <otherIPrangesyouneed>'
execute as zimbra user
postfix reload
and
postconf mynetworks
to check that everything is correct.

If you use an external dns server, make sure it returns the correct results for your changed IP.

nagendra

@cdaffara
Thanks its working....

nagendra

guys need help

we have one more mail server in our premises @yourmail.com Zimbra is in @yourmail.studio we are trying to send email from @yourmail.studio to @yourmail.com its not working but we are able to receive mails from @yourmail.com
any solution??

scottalanmiller

Start with DNS for anything like this. Figure out how each server will look up the other.

Second, look at the error messages and see why it says that it was not sent.

nagendra

This is the mail system at host mail.yourmail.studio.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
nagendra@yourmail.com: Host or domain name not found. Name service error for
name=yourmail.com type=A: Host found but no data record of requested type

scottalanmiller

@nagendra said in Zimbra installation and configuration (internal use only):

           The mail system
nagendra@yourmail.com: Host or domain name not found. Name service error for
name=yourmail.com type=A: Host found but no data record of requested type

Right, so there is your answer. Host or domain name not found. The sending system has not record for the receiving system, it has no idea where to send the mail. So DNS is the problem.

nagendra

but able to recieve emails... but guess is it should not send and recieve emails both the ways right ??

scottalanmiller

@nagendra said in Zimbra installation and configuration (internal use only):

but able to recieve emails... but guess is it should not send and recieve emails both the ways right ??

Email is unidirectional. The ability to receive tells you nothing about the ability to send.

nagendra

@scottalanmiller DNS problem in Zimbra Server >??

nagendra

any help on this

scottalanmiller

Those DNS responses are quite different. Is one coming back from the DNS servers publicly and one from the local DNS?

nagendra

yes from yourmail.studio is correct but from yourmail.com is pointing to our AD

scottalanmiller

And the info that it is returning is the correct name of the email server?

nagendra

no its not correct

scottalanmiller

@nagendra said in Zimbra installation and configuration (internal use only):

no its not correct

Then you need to go into your AD DNS server and change it so that it is correct.

nagendra

@scottalanmiller said in Zimbra installation and configuration (internal use only):

hange it so that it is correct.

in AD DNS everything is correct

scottalanmiller

@nagendra said in Zimbra installation and configuration (internal use only):

@scottalanmiller said in Zimbra installation and configuration (internal use only):

hange it so that it is correct.

in AD DNS everything is correct

So DNS lookups are correct now?

nagendra

yes but still when i run this command
host -t MX -v yourmail.com

am getting this message

[admin@mail ~]$ host -t MX -v yourmail.com
Trying "yourmail.com"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42574
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;yourmail.com. IN MX

;; AUTHORITY SECTION:
yourmail.com. 2048 IN SOA DC-ad.XXX.local. hostmaster.xxx.local. 23 900 600 86400 3600

Received 102 bytes from 127.0.0.1#53 in 0 ms
[admin@mail ~]$

scottalanmiller

There are only so many possibilities..... if you get the wrong answer from DNS, then DNS is wrong. DNS needs to be corrected. Either you need to look to the right server for resolution, or you need to change what is in that DNS.