Start the Linux MTA with or without a user interface, as described in the following section of the GroupWise Installation Guide for your version of GroupWise:
At the MTA server console or console, check to ensure that all links between the new Linux MTA and other domains and post offices are open.
If you have closed links, see the following section of GroupWise Troubleshooting 2: Solutions to Common Problems for your version of GroupWise:
GroupWise 2012: MTA Status Box Shows a Closed Location
GroupWise 8: MTA Status Box Shows a Closed Location
(Conditional) If the domain has gateways, start each gateway.
Set up a backup procedure for the domain in its new location on Linux, as described in the following sections in the GroupWise Administration Guide for your version of GroupWise:
GroupWise 2012: GroupWise Database Copy Utility
GroupWise 8: GroupWise Target Service Agent
and GroupWise Database Copy Utility
(Conditional) If the domain has a GWIA that is running on the same NetWare or Windows server where the domain folder was previously located, migrate the GWIA to the Linux server where the domain folder is now located. See Section 13.0, Manually Migrating the Internet Agent to Linux.
After the domain has been migrated to Linux, the NetWare or Windows GWIA can continue receiving and queuing Internet messages, but it cannot pass them into the GroupWise system until the GWIA has been migrated to Linux along with its domain and MTA.
(Conditional) If the domain has a WebAccess Agent that is running on the same NetWare or Windows server where the domain folder was previously located, consider migrating the WebAccess Agent to the Linux server where the domain folder is now located. See Section 14.0, Manually Migrating WebAccess to Linux.
Because it is common for the WebAccess Agent to run on a different server from where its domain is located, there is no urgency about migrating it to Linux.
When the Linux MTA is running smoothly for the new domain location, and other GroupWise agents belonging to the domain have been migrated to Linux as needed, delete the old domain folder structure (and if applicable, the mslocal folder structure) from the NetWare or Windows server.
(Optional) Uninstall the old MTA software to reclaim disk space on the NetWare or Windows server.