Send invintation email by api

I tried to invite user to the Room using room/hash. It work's fine and returned success, but i sended in my request sendmail parameter as true, but recieved no emails. All emails sended from web interfaces delivered to users. Here is a log of openmeetings server:

DEBUG 11-17 04:12:38.136 o.a.o.w.UserWebService:102 [0.0-5080-exec-2] - Login user

DEBUG 11-17 04:12:38.146 o.a.o.d.d.u.UserDao:654 [0.0-5080-exec-2] - login:: 1 users were found
DEBUG 11-17 04:12:39.112 o.a.o.d.u.AuthLevelUtil:42 [0.0-5080-exec-2] - Level Login :: [GRANTED]
DEBUG 11-17 04:12:39.114 o.a.o.d.d.u.UserDao:671 [0.0-5080-exec-2] - loginUser [GroupUser [id=1, moderator=false, group=Group [id=1, name=TransTraid, deleted=false], user=User [id=1, firstname=firstname, lastname=lastname, login=omadmin, pictureuri=null, deleted=false, languageId=9, address=Address [id=1, country=RU, street=null, town=null, zip=null, deleted=false, email=root@technodesign.ru, phone=null], externalId=null, externalType=null, type=user]]]
DEBUG 11-17 04:12:39.121 o.a.o.d.d.s.SessiondataDao:87 [0.0-5080-exec-2] - create :: create
DEBUG 11-17 04:12:39.123 o.a.o.d.d.s.SessiondataDao:57 [0.0-5080-exec-2] - startsession :: startsession
DEBUG 11-17 04:12:39.132 o.a.o.w.UserWebService:109 [0.0-5080-exec-2] - Login user: 1
DEBUG 11-17 04:12:39.148 o.a.o.w.RoomWebService:348 [0.0-5080-exec-5] - [hash] invite {"email":"test@mail.ru","firstname":"Sergey","languageId":0,"lastname":"Birukov","message":"I invite you","password":"1234","passwordProtected":true,"roomId":144,"subject":"Приглашение","valid":"Period","validFrom":"2018-11-12 09:30:23","validTo":"2018-11-17 09:35:22"}
DEBUG 11-17 04:12:39.189 o.a.o.d.u.AuthLevelUtil:42 [0.0-5080-exec-5] - Level Soap :: [GRANTED]