Life with Linux

Backup email addresses, credentials and their data (Without their mailbox): (OLD Server)   Step:1 Create a directory for backup data root@mail:~# mkdir -p /opt/backups/zmigrate/mailbox   Step:2 Set permission of that directory root@mail:~# chown zimbra.zimbra /opt/backups/zmigrate   Step:3 Go to the directory and login to zimbra root@mail:~# cd /opt/backups/zmigrate root@mail:/opt/backups/zmigrate# su zimbra   Step:4 Execute below commands sequentially to get domains, email addresses, distribution list   zimbra@mail:/opt/backups/zmigrate$ zmprov -l gaa > emails.txt     Step:5 : Backup user mailbox   for email in `cat /opt/backups/emails.txt`; do zmmailbox -z -m $email getRestURL '/?fmt=tgz' > $email.tgz ; echo $email ; done   Step 6:   Transfer data from old zimbra server to new server carbonio: rsync -avp -e 'ssh -p 22' rooTmin@192.168.50.50:/opt/backups/zmigrate/ /opt/backups/zmigrate/...

1.     Prerequisite: preparing the server i)              Update-Upgrade server ii)             Install “tzdata” iii)           Time zone reconfigure iv)            Install “fdisk” v)             LVM Create- Disk space increase: 1. df -hT                                                                     ## check running disk space 2. vgdisplay                                                      ...

Sometimes, we need to restrict a specific person to send mail inside your organization only. He will not be able to send mail outer domain except your allowed domain but S/He can receive mail from anywhere.  To implement this restriction, we have to configure the restriction which is given below:   Step:1 Specify the account for which the restriction is applied. echo "test@example.com restrict_sender" > /opt/zimbra/postfix/conf/restrict_senders  Note: If you would like to restrict all users of a domain, enter the domain name instead of email ids.  For example: echo "yourdomain.com restrict_sender" > /opt/zimbra/postfix/conf/restrict_senders   Step:2 postmap /opt/zimbra/postfix/conf/restrict_senders Step:3 Create a blank file in which no domain name is specified. touch /opt/zimbra/postfix/conf/restrict_recipients  Step: 4 postmap /opt/zimbra/postfix/conf/restrict_recipients  Step:5 vim /opt/zimbra/conf/zmconfigd.cf  Find the "SECTIO...

To get a professional look, most of Mail Server Administrator wants to change the default Zimbra logo. Today I am going to show how to replace the Zimbra logo with  your own company logo.   Step:1 Firstly, logo size has to change as specified here, otherwise the image may not display correctly. ·          300x48 pixels (Login screen) ·          200x28 pixels (Zimbra interface, top left corner) Step: 2 Rename the logos as follows. LoginBanner_white.png AppBanner_white.png Step:3 Go to the Logo directory on zimbra and rename the existing default logos as backup: root@hmail:~# su zimbra zimbra@hmail:~$ /opt/zimbra/jetty_base/webapps/zimbra/skins/_base/logos$   LoginBanner_white_back.png AppBanner_white_back.png Step:4 Upload your own company images on Logo Directory and change the ownership permission of the images zimbra@hmail:~$ chown zimbra:zimbra LoginBan...

T he Zimbra Collaboration Server is a mail server that have a complete package of collaborative web application, web-based admin console and webmail client. It also includes antivirus, antispam, collaboration features with a simplified web interface. Its very easier to manage and maintain for administrators. There has t version of Zimbra server: ·          open-source Edition (Free) ·          Network Edition (Paid) It also provides desktop client in a user-friendly feature.   i)              System Requirements CPU: Intel/AMD 2.0 GHZ+ 64-bit RAM: 8 GB 10 GB free disk space And additional space for Mailbox   ii)            Zimbra Server Profile: Mail Domain: mail.serverwench.com IP: 192.168.0.23   iii)        ...