apt install dnsmasq -y
cp removed link removed link .old
> removed link
vi removed link

domain=example.pro
mx-host=example.pro,webmail.example.pro,0
address= removed link
host-record=example.pro,10.110.15.10
host-record=awebmail.example.pro,10.110.15.10

server=8.8.8.8
server=8.8.4.4
systemctl enable --now dnsmasq
systemctl restart dnsmasq
systemctl start dnsmasq

dnsmasq --test

vi removed link

# Set localhost as nameserevr
nameserver 127.0.0.1

chattr +i removed link

lsattr removed link

ssystemctl disable systemd-resolved
systemctl stop systemd-resolved

hostnamectl set-hostname mailweb.example.pro
echo -e "127.0.0.1 localhost\n10.110.15.10 mailweb.example.pro mailweb" > /etc/hosts
echo "$(hostname -I) $(hostname -f)"

sysctl -w net.ipv6.conf.all.disable_ipv6=1 && sudo sysctl -w net.ipv6.conf.default.disable_ipv6=

systemctl stop firewalld
systemctl disable firewalld

reboot 

echo "deb removed link $(lsb_release -cs)-pgdg main" > removed link

wget -O- " removed link " | \
gpg --dearmor | sudo tee removed link > \
/dev/null

chmod 644 removed link
sed -i 's/deb/deb /' removed link

apt update
apt install postgresql-16 -y

read -s -p "Insert Password:" DB_ADM_PWD

su - postgres -c "psql --command=\"CREATE DATABASE carbonio_adm owner carbonio_adm;\""

unset DB_ADM_PWD

su - postgres -c "psql --command=\"ALTER SYSTEM SET listen_addresses TO '*';\""
su - postgres -c "psql --command=\"ALTER SYSTEM SET max_connections = 500;\""
su - postgres -c "psql --command=\"ALTER SYSTEM SET shared_buffers = 5000;\""
echo "host all all 0.0.0.0/0 md5" >> removed link
systemctl restart postgresql

vi removed link

deb removed link jammy main

wget -O- "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x5dc7680bc4378c471a7fa80f52fd40243e584a21" | gpg --dearmor | sudo tee removed link > /dev/null

chmod 644 removed link

apt update && apt upgrade

apt install service-discover-server \
carbonio-directory-server carbonio-proxy carbonio-webui \
carbonio-files-ui carbonio-mta carbonio-mailbox-db \
carbonio-appserver carbonio-user-management \
carbonio-files-ce carbonio-files-public-folder-ui \
carbonio-files-db carbonio-tasks-ce carbonio-tasks-db \
carbonio-tasks-ui carbonio-storages-ce carbonio-preview-ce \
carbonio-docs-connector-ce carbonio-docs-connector-db \
carbonio-docs-editor carbonio-prometheus \
carbonio-message-broker carbonio-message-dispatcher \
carbonio-message-dispatcher-db carbonio-ws-collaboration-ce \
carbonio-ws-collaboration-db carbonio-ws-collaboration-ui \
carbonio-videoserver-ce carbonio-catalog

systemctl restart carbonio-prometheus-nginx-exporter.service

carbonio-bootstrap

From now on, the full installation fails.

error account no_such_server no such server: webmail.example.pro

Your advice helped me to address the problem. 

I've used the following command to check the SMTP port configured globally:

zextras@mail:~$ carbonio prov gacf zimbraSmtpPort
zimbraSmtpPort: 20025

As you can see, it was 20025.

I changed it with the following command:

zextras@mail:~$ carbonio prov mcf zimbraSmtpPort 25
zextras@mail:~$ zmcontrol restart

After that, all worked.

Thank you

zmprov ms `zmhostname` zimbraSmtpPort 25
zmcontrol restart

Hope it helps

Were you able to figure out what was the cause of it?

Thanks

Hi,

Sorry to hear that.
Just to ensure we are on the same page, I am sharing the installation procedure.

Step-1 Update & upgrade the repository database

root@mail~# apt update && apt upgrade -y

Step-2 Set Static IP address

Set static IP on your server

Step-3 Set /etc/hostname

root@mail:~# cat /etc/hostname
mail.example.com

Step-4 Set /etc/hosts

Set the hosts file properly

Warning: Do not keep any ipV6 configuration in your /etc/hosts file.

root@mail:~# cat /etc/hosts
127.0.0.1               localhost
161.97.99.162   mail.latestserver.xyz   mail
root@mail:~#

Reboot The Server

root@mail~# reboot now

Step-5 Add zextras repository

You need to download and add the zextras repository to your system to install the necessary carbonio CE packages.

Head to the Carbonio Community Edition webpage and fill out the form. You will soon receive an e-mail including very easy instructions to add the repository to your operating system.

After you successfully added the repository, upgrade the system.

Step-6 Update & upgrade repository database

root@mail~# apt update && apt upgrade -y

Step-7 Set up dnsmasq 

Warning:

• If you have published the DNS records into any public DNS server then you do not need DNSMASQ
• During the installation of dnsmasq, you may face conflict on port 53. To resolve this, remove and disable systemd-resolved.

root@mail:~# systemctl stop systemd-resolved
root@mail:~# systemctl disable systemd-resolved
root@mail:~# systemctl mask systemd-resolved

Now install dnsmasq:

root@mail:~# apt install dnsmasq -y

vi /etc/dnsmasq.conf



server=1.1.1.1
mx-host=example.com,mail.example.com,50
host-record=example.com,192.168.1.152
host-record=mail.example.com,192.168.1.152


#Restart the service#
root@mail:~# /etc/init.d/dnsmasq restart
root@mail:~# /etc/init.d/dnsmasq status

Step-8 Install Carbonio CE packages

Install and configure postgresql

root@mail:~# apt install postgresql-12 -y
root@mail:~# systemctl reload postgresql

Check out this link to get the details of PostgreSQL configuration.

root@mail:~# apt install service-discover-server \
carbonio-directory-server \
carbonio-proxy \
carbonio-webui carbonio-files-ui \
carbonio-mta \
carbonio-appserver \
carbonio-user-management \
carbonio-files-ce carbonio-files-db \
carbonio-tasks-ce carbonio-tasks-db \
carbonio-tasks-ui \
carbonio-storages-ce \
carbonio-preview-ce \
carbonio-docs-connector-ce carbonio-docs-editor \
carbonio-prometheus -y

Step-9 Use the following command to configure and launch Carbonio CE

carbonio-bootstrap

Step-10 Setup Carbonio Mesh & pending setups

service-discover setup-wizard

pending-setups -a

Step-11 Configure Carbonio CE databases

root@mail:~# read -s -p "Password:" DB_ADM_PWD

root@mail:~# su - postgres -c "psql --command=\"CREATE ROLE carbonio_adm WITH LOGIN SUPERUSER encrypted password '$DB_ADM_PWD';\""

root@mail:~# su - postgres -c "psql --command=\"CREATE DATABASE carbonio_adm owner carbonio_adm;\""


root@mail:~# PGPASSWORD=$DB_ADM_PWD carbonio-files-db-bootstrap carbonio_adm 127.0.0.1
root@mail:~# PGPASSWORD=$DB_ADM_PWD carbonio-tasks-db-bootstrap carbonio_adm 127.0.0.1


# To unset the variable value
root@mail:~# unset DB_ADM_PWD

Step-13 Bootstrap database of Carbonio files

root@mail:~# su - zextras
root@mail:~# su - zextras -c "zmcontrol restart"
root@mail:~# systemctl restart carbonio-prometheus-nginx-exporter.service

root@mail:~# su - zextras -c "zmcontrol -v"
root@mail:~# su - zextras -c "zmcontrol status"
 
root@mail:~# consul members
root@mail:~# systemctl list-units carbonio*

With this step, the installation process is completed.

If you followed all of these steps and still not been able to send mail, please check below issues:

1. You server can resolve dns; i.e ping google.com or query mx

2. You have set the server hostname properly.

Thanks and regards,

Sharif

I just set up Carbonio CE server for the 1st time to try it out. Immediately after install I tried sending an email to myself, which originated from the newly installed Carbonio CE server and was to an account on an already existing Zimbra server.  The mail did not send, it went immediately to drafts. Upon checking /var/log/carbonio.log, I did not see an attempt to send the mail. What i did notice was the following error:

Oct 16 18:46:40 cmail zmconfigd: File "/opt/zextras/common/lib/jylibs/state.py", line 796, in rewriteConfig for line in open(fr).readlines():
Oct 16 18:46:40 cmail zmconfigd: Rewrite failed: No such file or directory: '/opt/zextras/mailboxd/etc/zimbra.web.xml.in' ( No such file or directory: '/opt/zextras/mailboxd/etc/zimbra.web.xml.in')

Can someone tell me if these errors are related to sending mail?

Receiving mail appears to work just fine.

Thanks for the help.

Here a solution for zimbra.log errors : https://community.zextras.com/forum/postid/3864/