DocSpace-client/config/notify.json

 {
	"notify": {
		"connectionStringName": "default",
		"storeMessagesDays": 7,
		"process": {
			"maxThreads": 2,
			"bufferSize": 10,
			"maxAttempts": 10,
			"attemptsInterval": "0:5:0"
		},
		"senders": [
			{
				"name": "messanger.sender",
				"type": "ASC.Core.Notify.Senders.JabberSender, ASC.Core.Common"
			},
			{
				"name": "email.sender",
				"type": "ASC.Core.Notify.Senders.SmtpSender, ASC.Core.Common",
				"properties" :
				{
					"useCoreSettings" : "true"
				}
			}
		]
	}
 }