Migration from Cpanel to Plesk

[abreham]

I have migrated my server from Cpanel to plesk.It showed me the migration was successful.However, when I checked it back the webmail holders at the cpanel were not migrated to the Plesk server. The Cpanel is configured to use Squrrel webmail while the Plesk uses horde.

Any help is appreciated

Abreham Berhe