s.givenName+"."+trim(s.sn)+"@"P.TargetDomain
Or
trunc(s.givenName+"."+trim(s.sn), 20)+"@"P.TargetDomain
Or
trunc(s.givenName+"."+trim(s.sn), 20)+"@yourdomain.com"
Recommendations:
Important:
For a detailed explanation for the available settings, please see the Directory Sync Advanced Mapping Guide:
https://support.quest.com/technical-documents/on-demand-migration/current/active-directory-sync-advanced-mapping-guide