Locations of interest:

cPanel MailMan Installation: /usr/local/cpanel/3rdparty/mailman
cPanel MailMan Binaries: /usr/local/cpanel/3rdparty/mailman/bin
cPanel MailMan Archives: /usr/local/cpanel/3rdparty/mailman/archives/private
cPanel MailMan Mailing Lists: /usr/local/cpanel/3rdparty/mailman/lists

Plesk MailMan Installation: /var/lib/mailman
Plesk MailMan Binaries: /usr/lib/mailman/bin
Plesk MailMan Archives: /var/lib/mailman/archives/private
Plesk MailMan Mailing Lists: /var/lib/mailman/lists


For the rest of this guide, we will assume we are working with a cPanel based server. However, you can easily use the same steps but adjust for pathing on a Plesk based server.


Binaries of interest:

/usr/local/cpanel/3rdparty/mailman/bin/list_lists - List mailing lists configured on the server
/usr/local/cpanel/3rdparty/mailman/bin/config_list - Used for backing up and restoring MailMan configurations
/usr/local/cpanel/3rdparty/mailman/bin/list_members - Used for listing regular and digest subscribers of a MailMan list
/usr/local/cpanel/3rdparty/mailman/bin/add_members - Used for adding subscribers to an existing MailMan list
/usr/local/cpanel/3rdparty/mailman/bin/rmlist - Used for removing lists from the server, takes the list name as argument.


Our source mailing list will be of the form mailinglist.name@olddomain.com, however it will be configured in MailMan as mailinglist.name_olddomain.com. - BROKEN LINK Our destination mailing list is named mailinglist.name@newdomain.com, where it is configured as mailinglist.name_newdomain.com on the server.


NOTE: While list_lists returns a shorthand form of the mailing list name, it won't work with the above tools. Find the appropriate mailing list name in /usr/local/cpanel/3rdparty/mailman/lists


Let's refer to our ticket directory as $TICKETDIR and get started


Backup Configuration and Members


Write out existing MailMan list configuration to file: - BROKEN LINK

# /usr/local/cpanel/3rdparty/mailman/bin/config_list -o $TICKETDIR/mailinglist.name_olddomain.com.conf mailinglist.name_olddomain.com


Write out member lists to file:

Regular Subscribers:
# /usr/local/cpanel/3rdparty/mailman/bin/list_members -o $TICKETDIR/mailinglist.name_olddomain.com-regular.txt -r mailinglist.name_olddomain.com

Digest Subscribers:
# /usr/local/cpanel/3rdparty/mailman/bin/list_members -o $TICKETDIR/mailinglist.name_olddomain.com-digest.txt -d mailinglist.name_olddomain.com


Restore Configuration and Members to new list


Restore configuration to new list after it has been created:

# /usr/local/cpanel/3rdparty/mailman/bin/config_list -i $TICKETDIR/mailinglist.name_olddomain.com.conf mailinglist.name_newdomain.com


Restore regular subscribers to new list:

# /usr/local/cpanel/3rdparty/mailman/bin/add_members -r $TICKETDIR/mailinglist.name_olddomain.com-regular.txt mailinglist.name_newdomain.com
Subscribed: wat@suddenlink.net
Subscribed: a-testuser@ti.com
Subscribed: traci@google.org
Subscribed: dan@gmail.com
Subscribed: dave@yahoo.com
Subscribed: gary@gmail.com
Subscribed: gboss@charter.net
Subscribed: gman@google.com
Subscribed: gordan_freeman@gmail.com
Subscribed: thecake@isalie.net
Subscribed: thespoon@gmail.net
Subscribed: solid_snake@yahoo.com
Subscribed: liquid_snake@verizon.net
Subscribed: solidus_snake@hotmail.com
Subscribed: deckard@olddomain.com
Subscribed: micro@hotmail.com
Subscribed: shareen@newdomain.com
Subscribed: stevie@newdomain.com
Subscribed: tod@yahoo.com


Restore digest subscribers to new list:

# /usr/local/cpanel/3rdparty/mailman/bin/add_members -d $TICKETDIR/mailinglist.name_olddomain.com-digest.txt mailinglist.name_newdomain.com


Transfer mailman archives and mbox to MailMan list: - BROKEN LINK

# rsync -avP /usr/local/cpanel/3rdparty/mailman/archives/private/mailinglist.name_olddomain.com/ /usr/local/cpanel/3rdparty/mailman/archives/private/mailinglist.name_newdomain.com/
# rsync -avP /usr/local/cpanel/3rdparty/mailman/archives/private/mailinglist.name_olddomain.com.mbox/ /usr/local/cpanel/3rdparty/mailman/archives/private/mailinglist.name_newdomain.com.mbox/


Permissions


If you transferred a MailMan list between a Plesk and cPanel server, you'll need to adjust permissions on the archives: - BROKEN LINK



Plesk Destination:
# chown -R root:mailman /var/lib/mailman/archives/private/mailinglist.name_newdomain.com/
# chown -R root:mailman /var/lib/mailman/archives/private/mailinglist.name_newdomain.com.mbox/

cPanel Destination:
# chown -R mailman. /usr/local/cpanel/3rdparty/mailman/archives/private/mailinglist.name_newdomain.com/
# chown -R mailman. /usr/local/cpanel/3rdparty/mailman/archives/private/mailinglist.name_newdomain.com.mbox/


That's all that needs to be done! You can now review the new mailing list through cPanel and check that everything is functioning correctly.