curl --request GET \
  --url https://api.raul.ugps.io/api/v1/omnichannel/email/sync/state \
  --header 'Authorization: Bearer <token>'

{
  "inbox": {
    "lastSyncAt": {},
    "status": "idle",
    "progress": 123,
    "totalEmails": 123,
    "syncedEmails": 123
  },
  "sent": {
    "lastSyncAt": {},
    "status": "idle",
    "progress": 123,
    "totalEmails": 123,
    "syncedEmails": 123
  }
}