How To Use Script To Migrate Zimbra To Carbonio | Carbonio CE 

We hope you read the first article which is about Zimbra to Carbonio CE migration using imapsync method. From the first article, you already understood that migration can be easy and simple if you understand the process.

Using this method you can migrate your email data including contacts and calendar from Zimbra server to Carbonio CE.

How are we going to do it?

Let me give you a graphical overview of how this method works:

To Summarize the steps:

• We extract user data (account details) and transfer them to Carbonio CE server.
• Then we import the transferred data to Carbonio CE server.
• We modify DNS record (MX) to make Carbonio CE server active.
• Now we again export email data from Zimbra Server to Carbonio CE server and Import them.

Benefits of this method

The main benefit of this migration method is you are get to migrate not only user email data but also contacts and calendar data of all respective user.

Important Note:

The process of transferring and importing old data can increase system load in Carbonio CE server significantly. So you can transfer/import old data in a small chunk without putting much load on the Carbonio CE server OR you can take a server migration downtime window to complete this step.

As this method involves data export import process on both Zimbra & Carbonio CE server, make sure you have enough space in the server or you use external storage to store temporary data.

Migration steps

On Zimbra server, check the service status before starting the migration process:

Step-1

zimbra@mail:~$ zmcontrol -v
Release 8.8.15.GA.4179.UBUNTU20.64 UBUNTU20_64 FOSS edition, Patch 8.8.15_P39.
zimbra@mail:~$
zimbra@mail:~$ zmcontrol status
Host mail.testdomain1.com
        amavis                  Running
        antispam                Running
        antivirus               Running
        dnscache                Running
        ldap                    Running
        logger                  Running
        mailbox                 Running
        memcached               Running
        mta                     Running
        opendkim                Running
        proxy                   Running
        service webapp          Running
        snmp                    Running
        spell                   Running
        stats                   Running
        zimbra webapp           Running
        zimbraAdmin webapp      Running
        zimlet webapp           Running
        zmconfigd               Running
zimbra@mail:~$

Create a directory to store exported data and set the necessary permissions

root@mail:~# mkdir -p /opt/backups/zmigrate
root@mail:~# chown -R zimbra:zimbra /opt/backups/zmigrate
root@mail:~# cd /opt/backups/zmigrate
root@mail:/opt/backups/zmigrate#

Export domains, email accounts

zimbra@mail:/opt/backups/zmigrate$ zmprov -l gad > domains.txt
zimbra@mail:/opt/backups/zmigrate$ zmprov -l gaa > emails.txt
zimbra@mail:/opt/backups/zmigrate$
zimbra@mail:/opt/backups/zmigrate$ ls
domains.txt emails.txt
zimbra@mail:/opt/backups/zmigrate$ cat domains.txt emails.txt
testdomain1.com
admin@testdomain1.com
spam.bjyqpxa2@testdomain1.com
ham.ipqha8h5wk@testdomain1.com
virus-quarantine.przjjrzi@testdomain1.com
galsync.6lkcyfrni@testdomain1.com
stefania@testdomain1.com
arman@testdomain1.com
flaminia@testdomain1.com
irene@testdomain1.com
suman@testdomain1.com
annalisa@testdomain1.com
sharif@testdomain1.com
luca@testdomain1.com
carlo@testdomain1.com
paolo@testdomain1.com
matteo@testdomain1.com
fabio@testdomain1.com
lorenzo@testdomain1.com
zimbra@mail:/opt/backups/zmigrate$

Export all users data (i.e. password, display name)

zimbra@mail:/opt/backups/zmigrate$ mkdir userpass
zimbra@mail:/opt/backups/zmigrate$ for i in `cat emails.txt`; do zmprov  -l ga $i userPassword | grep userPassword: | awk '{ print $2}' > userpass/$i.shadow; done
zimbra@mail:/opt/backups/zmigrate$
zimbra@mail:/opt/backups/zmigrate$ mkdir userdata
zimbra@mail:/opt/backups/zmigrate$ for i in `cat emails.txt`; do zmprov ga $i  | grep -i Name: > userdata/$i.txt ; done
zimbra@mail:/opt/backups/zmigrate$
zimbra@mail:/opt/backups/zmigrate$ ls -llR userdata/ userpass/
userdata/:
total 56
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:47 admin@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:48 annalisa@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:48 arman@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  51 Jun  2 00:48 carlo@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  45 Jun  2 00:48 flaminia@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra 268 Jun  2 00:47 galsync.6lkcyfrni@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:47 ham.ipqha8h5wk@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:48 irene@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:48 luca@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra   0 Jun  2 00:48 paolo@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:48 sharif@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:47 spam.bjyqpxa2@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:48 stefania@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:48 suman@testdomain1.com.txt
-rw-r----- 1 zimbra zimbra  26 Jun  2 00:47 virus-quarantine.przjjrzi@testdomain1.com.txt

userpass/:
total 72
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:43 admin@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:44 annalisa@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:43 arman@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:44 carlo@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:44 fabio@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:43 flaminia@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:43 galsync.6lkcyfrni@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:43 ham.ipqha8h5wk@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:43 irene@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:44 lorenzo@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:44 luca@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:44 matteo@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:44 paolo@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:44 sharif@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:43 spam.bjyqpxa2@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:43 stefania@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:43 suman@testdomain1.com.shadow
-rw-r----- 1 zimbra zimbra 106 Jun  2 00:43 virus-quarantine.przjjrzi@testdomain1.com.shadow
zimbra@mail:/opt/backups/zmigrate$

Finally, you can check users message count and other information to verify them later. i.e.

zimbra@mail:/opt/backups/zmigrate$ for j in $( zmprov -l gaa | egrep -v "^(spam|ham)"); do total=0; echo -n "Total for $j = "; for i in $( zmmailbox -z -m "$j" gaf | awk '{print $4}' | egrep -o "[0-9]+" ); do total=$((total + i )); done; echo "$total"; done
Total for admin@testdomain1.com = 2649
Total for virus-quarantine.przjjrzi@testdomain1.com = 5
Total for galsync.6lkcyfrni@testdomain1.com = 5
Total for stefania@testdomain1.com = 61
Total for arman@testdomain1.com = 18
Total for flaminia@testdomain1.com = 60
Total for irene@testdomain1.com = 47
Total for suman@testdomain1.com = 41
Total for annalisa@testdomain1.com = 34
Total for sharif@testdomain1.com = 45
Total for luca@testdomain1.com = 31
Total for carlo@testdomain1.com = 24
Total for paolo@testdomain1.com = 10
Total for matteo@testdomain1.com = 11
Total for fabio@testdomain1.com = 26
Total for lorenzo@testdomain1.com = 12
zimbra@mail:/opt/backups/zmigrate$

Step-2

Transfer Data From Old Zimbra Server To New Carbonio CE Server

Before transferring the data check all services are running and then create folder on the Carbonio CE server.

zextras@mail:~$ zmcontrol -v
Carbonio Release 23.6.0
zextras@mail:~$
zextras@mail:~$
zextras@mail:~$ zmcontrol status
Host mail.example.com
        amavis                  Running
        antispam                Running
        antivirus               Running
        directory-server        Running
        mailbox                 Running
        memcached               Running
        mta                     Running
        opendkim                Running
        proxy                   Running
        service webapp          Running
        service-discover        Running
        stats                   Running
        config service          Running
zextras@mail:~$

Now create folders as they were created on the Zimbra server.

root@mail:~# mkdir -p /opt/backups/zmigrate
root@mail:~# chown -R zextras:zextras /opt/backups/zmigrate
root@mail:~# cd /opt/backups/zmigrate
root@mail:/opt/backups/zmigrate#

Transfer data to the new server. You can use rsync or any other tool to transfer these data. For example:

[You may need to modify/adjust the permissions of source/destination folder]
rsync -avp /opt/backups/zmigrate/* root@new_server_ip:/opt/backups/zmigrate/

root@mail:/opt/backups/zmigrate# rsync -avp /opt/backups/zmigrate/* root@192.168.1.192:/opt/backups/zmigrate/*
root@192.168.1.192's password:
sending incremental file list
domains.txt
emails.txt
userdata/
userdata/admin@testdomain1.com.txt
userdata/annalisa@testdomain1.com.txt
userdata/arman@testdomain1.com.txt
userdata/carlo@testdomain1.com.txt
userdata/flaminia@testdomain1.com.txt
userdata/galsync.6lkcyfrni@testdomain1.com.txt
userdata/ham.ipqha8h5wk@testdomain1.com.txt
userdata/irene@testdomain1.com.txt
userdata/luca@testdomain1.com.txt
userdata/paolo@testdomain1.com.txt
userdata/sharif@testdomain1.com.txt
userdata/spam.bjyqpxa2@testdomain1.com.txt
userdata/stefania@testdomain1.com.txt
userdata/suman@testdomain1.com.txt
userdata/virus-quarantine.przjjrzi@testdomain1.com.txt
userpass/
userpass/admin@testdomain1.com.shadow
userpass/annalisa@testdomain1.com.shadow
userpass/arman@testdomain1.com.shadow
userpass/carlo@testdomain1.com.shadow
userpass/fabio@testdomain1.com.shadow
userpass/flaminia@testdomain1.com.shadow
userpass/galsync.6lkcyfrni@testdomain1.com.shadow
userpass/ham.ipqha8h5wk@testdomain1.com.shadow
userpass/irene@testdomain1.com.shadow
userpass/lorenzo@testdomain1.com.shadow
userpass/luca@testdomain1.com.shadow
userpass/matteo@testdomain1.com.shadow
userpass/paolo@testdomain1.com.shadow
userpass/sharif@testdomain1.com.shadow
userpass/spam.bjyqpxa2@testdomain1.com.shadow
userpass/stefania@testdomain1.com.shadow
userpass/suman@testdomain1.com.shadow
userpass/virus-quarantine.przjjrzi@testdomain1.com.shadow

sent 5,736 bytes  received 705 bytes  2,576.40 bytes/sec
total size is 3,031  speedup is 0.47
root@mail:/opt/backups/zmigrate#

Step-3

Let me remind you:

The process of transferring and importing old data can increase system load in Old server& Carbonio CE server. So you have two choices:
1. You can transfer/import old data in a small chunk without putting much load on the both servers
2. You can take a server migration downtime window to complete the transfer & import step.

Step-4

Restore all domains

zextras@mail:/opt/backups/zmigrate$ carbonio prov -l gad
example.com
zextras@mail:/opt/backups/zmigrate$
zextras@mail:/opt/backups/zmigrate$
zextras@mail:/opt/backups/zmigrate$ for i in `cat /opt/backups/zmigrate/domains.txt `; do  carbonio prov cd $i zimbraAuthMech zimbra ;echo $i ;done
ac52982c-17b0-48bf-910f-468df2f08c6f
testdomain1.com
zextras@mail:/opt/backups/zmigrate$ carbonio prov -l gad
example.com
testdomain1.com
zextras@mail:/opt/backups/zmigrate$

Create/Restore all email accounts with old passwords and user data in the Carbonio CE server

[Create a script and modify the execution permission, ownership etc]
#!/bin/bash
#Script for creating the email accounts createacct.sh
USERPASS="/opt/backups/zmigrate/userpass"
USERDATA="/opt/backups/zmigrate/userdata"
USERS="/opt/backups/zmigrate/emails.txt"
for i in `cat $USERS`
do
givenName=$(grep givenName: $USERDATA/$i.txt | cut -d ":" -f2)
displayName=$(grep displayName: $USERDATA/$i.txt | cut -d ":" -f2)
shadowpass=$(cat $USERPASS/$i.shadow)
tmpPass="CHANGEme"
carbonio prov ca $i CHANGEme cn "$givenName" displayName "$displayName" givenName "$givenName"
carbonio prov ma $i userPassword "$shadowpass"
done

[Sample output]
zextras@mail:/opt/backups/zmigrate$ ./acc.sh
39ca3914-62a1-4c06-bc25-820d6e7ac44b
caeeedc6-b88f-46dc-ae6f-6894a72c45f3
7550537d-2c9e-40ed-a560-a02ae2afebcb
d86b1500-d7e3-46e6-af5f-a8b132b609e3
6ba8d7a8-1938-41fb-8081-cdae9f4085b3
0891631f-84a7-4aa6-beac-f1f83baa7771
ca3e05ba-de69-4c20-892e-9cb886da6b33
6a649fc4-c5a2-452d-bfcb-a4644abdae16
2b7f65f5-13a2-491c-8a91-b140945e10d0
16d44e96-229c-46c0-9154-e01624946b77
a7cda48f-5b2d-4edb-a32d-79c96ab3c07f
fd4d7e09-3a65-4f21-9774-7f565840b153
0d2822f5-0dec-4764-a68e-46a272f21d15
a0c5189f-4de6-4226-9119-a8fb400222a4
1e4d3937-c4cf-4b0d-97cf-6e29de461492
ef811730-2daf-4b12-94b0-57834717700a
6b629e72-44d8-45cb-8df6-ee9061884e18
13d557f9-a03b-428e-9be6-d5f142395070
zextras@mail:/opt/backups/zmigrate$
zextras@mail:/opt/backups/zmigrate$
zextras@mail:/opt/backups/zmigrate$
zextras@mail:/opt/backups/zmigrate$ carbonio prov -l gaa -v testdomain1.com | grep -e displayName
displayName:  Flami
displayName:  Carlo Facci
zextras@mail:/opt/backups/zmigrate$

Step-5

Now you can change the DNS record (MX record) to migrate the service from Zimbra to Carbonio CE.

We still need to export, transfer & export user data (email, contacts, calendars)

Step-6

Important Note:

Few things you should keep in mind before starting the mailbox export/import process:
1. Set the socket timeout high (i.e. zmlocalconfig -e socket_so_timeout=3000000; zmlocalconfig –reload)
2. Check if you have any attachment limits. If you have increase the value during the migration period.

Export Data from Zimbra Server and transfer them to Carbonio CE:

root@mail:/opt/backups/zmigrate# mkdir MBOX
root@mail:/opt/backups/zmigrate# chown -R zimbra:zimbra MBOX
root@mail:/opt/backups/zmigrate# su - zimbra
zimbra@mail:/opt/backups/zmigrate/MBOX$ for email in `cat /opt/backups/zmigrate/emails.txt`; do zmmailbox -z -m $email -t 0 getRestURL '/?fmt=tgz' > $email.tgz ; echo $email ; done
admin@testdomain1.com
spam.bjyqpxa2@testdomain1.com
ham.ipqha8h5wk@testdomain1.com
virus-quarantine.przjjrzi@testdomain1.com
galsync.6lkcyfrni@testdomain1.com
stefania@testdomain1.com
arman@testdomain1.com
flaminia@testdomain1.com
irene@testdomain1.com
suman@testdomain1.com
annalisa@testdomain1.com
sharif@testdomain1.com
luca@testdomain1.com
carlo@testdomain1.com
paolo@testdomain1.com
matteo@testdomain1.com
fabio@testdomain1.com
lorenzo@testdomain1.com
zimbra@mail:/opt/backups/zmigrate/MBOX$
zimbra@mail:/opt/backups/zmigrate/MBOX$ ls -ll
total 712
-rw-r----- 1 zimbra zimbra 585530 Jun  2 02:14 admin@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   9531 Jun  2 02:14 annalisa@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   5043 Jun  2 02:14 arman@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   6441 Jun  2 02:14 carlo@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   6741 Jun  2 02:15 fabio@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra  12583 Jun  2 02:14 flaminia@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   2073 Jun  2 02:14 galsync.6lkcyfrni@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   1917 Jun  2 02:14 ham.ipqha8h5wk@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra  10188 Jun  2 02:14 irene@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   4015 Jun  2 02:15 lorenzo@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   7450 Jun  2 02:14 luca@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   3959 Jun  2 02:15 matteo@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   3729 Jun  2 02:14 paolo@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   9944 Jun  2 02:14 sharif@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   1913 Jun  2 02:14 spam.bjyqpxa2@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra  13462 Jun  2 02:14 stefania@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   9048 Jun  2 02:14 suman@testdomain1.com.tgz
-rw-r----- 1 zimbra zimbra   1913 Jun  2 02:14 virus-quarantine.przjjrzi@testdomain1.com.tgz
zimbra@mail:/opt/backups/zmigrate/MBOX$

Transfer these data to the Carbonio CE server. You can use rsync or any other tool to transfer these data. For example:

root@mail:/opt/backups/zmigrate/MBOX# rsync -avp /opt/backups/zmigrate/MBOX/ root@192.168.1.192:/opt/backups/zmigrate/MBOX
root@192.168.1.192's password:
sending incremental file list
created directory /opt/backups/zmigrate/MBOX
./
admin@testdomain1.com.tgz
annalisa@testdomain1.com.tgz
arman@testdomain1.com.tgz
carlo@testdomain1.com.tgz
fabio@testdomain1.com.tgz
flaminia@testdomain1.com.tgz
galsync.6lkcyfrni@testdomain1.com.tgz
ham.ipqha8h5wk@testdomain1.com.tgz
irene@testdomain1.com.tgz
lorenzo@testdomain1.com.tgz
luca@testdomain1.com.tgz
matteo@testdomain1.com.tgz
paolo@testdomain1.com.tgz
sharif@testdomain1.com.tgz
spam.bjyqpxa2@testdomain1.com.tgz
stefania@testdomain1.com.tgz
suman@testdomain1.com.tgz
virus-quarantine.przjjrzi@testdomain1.com.tgz

sent 697,242 bytes  received 410 bytes  279,060.80 bytes/sec
total size is 695,480  speedup is 1.00
root@mail:/opt/backups/zmigrate/MBOX#

Step-7

Import the data to the Carbonio CE server: [On Carbonio Server]

Important Note:

Few things you should keep in mind before starting the mailbox export/import process:
1. Set the socket timeout high (i.e. zmlocalconfig -e socket_so_timeout=3000000; zmlocalconfig –reload)
2. Check if you have any attachment limits. If you have increase the value during the migration period
3. Set Public Service Host Name & Public Service Protocol to avoid any error/issue like below one

root@mail:/opt/backups/zmigrate/MBOX# chown zextras:zextras *

zextras@mail:/opt/backups/zmigrate/MBOX$ for i in `cat /opt/backups/zmigrate/emails.txt`; do zmmailbox -z -m $i -t 0 postRestURL "/?fmt=tgz&resolve=skip" /opt/backups/zmigrate/MBOX/$i.tgz ; echo "$i -- finished "; done
ERROR: zclient.IO_ERROR (Connection refused) (cause: java.net.ConnectException Connection refused)
admin@testdomain1.com -- finished
ERROR: zclient.IO_ERROR (Connection refused) (cause: java.net.ConnectException Connection refused)
spam.bjyqpxa2@testdomain1.com -- finished
ERROR: zclient.IO_ERROR (Connection refused) (cause: java.net.ConnectException Connection refused)
ham.ipqha8h5wk@testdomain1.com -- finished

[Finally after the fix mentioned in the previous important note specially about setting PublicServiceProtocol as https 🙂]

zextras@mail:/opt/backups/zmigrate/MBOX$ for i in `cat /opt/backups/zmigrate/emails.txt`; do zmmailbox -z -m $i -t 0 postRestURL "/?fmt=tgz&resolve=skip" /opt/backups/zmigrate/MBOX/$i.tgz ; echo "$i -- finished "; done
admin@testdomain1.com -- finished
spam.bjyqpxa2@testdomain1.com -- finished
ham.ipqha8h5wk@testdomain1.com -- finished
virus-quarantine.przjjrzi@testdomain1.com -- finished
galsync.6lkcyfrni@testdomain1.com -- finished
stefania@testdomain1.com -- finished
arman@testdomain1.com -- finished
flaminia@testdomain1.com -- finished
irene@testdomain1.com -- finished
suman@testdomain1.com -- finished
annalisa@testdomain1.com -- finished
sharif@testdomain1.com -- finished
luca@testdomain1.com -- finished
carlo@testdomain1.com -- finished
paolo@testdomain1.com -- finished
matteo@testdomain1.com -- finished
fabio@testdomain1.com -- finished
lorenzo@testdomain1.com -- finished
zextras@mail:/opt/backups/zmigrate/MBOX$

Now check the message count and other information to verify the migration:

zextras@mail:/opt/backups/zmigrate/MBOX$ for j in $( carbonio prov -l gaa | egrep -v "^(spam|ham)"); do total=0; echo -n "Total for $j = "; for i in $( zmmailbox -z -m "$j" gaf | awk '{print $4}' | egrep -o "[0-9]+" ); do total=$((total + i )); done; echo "$total"; done
Total for zextras@example.com = 8
Total for virus-quarantine.magoeimvge@example.com = 0
Total for galsync.htriqf0fj6@example.com = 0
Total for admin@testdomain1.com = 2765
Total for virus-quarantine.przjjrzi@testdomain1.com = 5
Total for galsync.6lkcyfrni@testdomain1.com = 5
Total for stefania@testdomain1.com = 61
Total for arman@testdomain1.com = 18
Total for flaminia@testdomain1.com = 58
Total for irene@testdomain1.com = 47
Total for suman@testdomain1.com = 41
Total for annalisa@testdomain1.com = 34
Total for sharif@testdomain1.com = 45
Total for luca@testdomain1.com = 31
Total for carlo@testdomain1.com = 24
Total for paolo@testdomain1.com = 10
Total for matteo@testdomain1.com = 11
Total for fabio@testdomain1.com = 26
Total for lorenzo@testdomain1.com = 12
zextras@mail:/opt/backups/zmigrate/MBOX$

So our message count shows the migration is successful. Still let’s check the contacts and calendar data from GUI of user accounts:

So you can see user stefania@testdomain1.com & carlo@testdomain1.com has their contacts and calendar events migrated properly.

So that’s it.

As this is a semi automatic process, please keep aware of the permission/ownership issues during executing any command. Also please do not copy/paste command to avoid typo.

Thanks for your time.

🙂