3cx The Welcome Email Can Only Be Used To Provision The 3cx Client For Windows And Mac.

I am running exchange 2013, with the newest CU updates. I am running 3cx as my phone system,
  1. 3cx Windows Client Download
  2. 3cx Client For Windows 10

Next, point the directory that will be used for TFTP to the same provisioning directory as 3CX (you can find this directory on the 3CX server under Program Data, 3CX, Data, Http, interface, provisioning). 3CX Phone system is a software based IP PBX which replaces the traditional hardware PBX.The solution is based on a Windows server which can be virtualized with VMware. VMware vSphere 5.x and above is a supported virtualization platform, but you can also use Hyper-V. Sep 25, 2016  download and install 3cx Windows client given by Extension “Send Welcome Email” -adding 3cx Mac client download and install 3cx Mac client given by Extension “Send Welcome Email”.


and for some strange reason, all of a sudden when my 3cs phone system tries to send an email,
it fails. I don't get an NDR back, but when looking at the logs, here's what I discovered. Can anyone help me decode why the emails are failing?
I have reset the password to the pbx account and made sure it's not locked out. Provision
Elijah is my exchange server.Client
'PSComputerName','RunspaceId','PSShowComputerName','Timestamp','ClientIp','ClientHostname','ServerIp','ServerHostname','SourceContext','ConnectorId','Source','EventId','InternalMessageId','MessageId','Recipients','RecipientStatus','TotalBytes','RecipientCount','RelatedRecipientAddress','Reference','MessageSubject','Sender','ReturnPath','Directionality','TenantId','OriginalClientIp','MessageInfo','MessageLatency','MessageLatencyType','EventData'
'exchange server','8e73a58f-53d5-4e5c-9889-e6a0afe58464','False','4/20/2016 10:55:36 AM',',',','elijah','No suitable shadow servers',','SMTP','HAREDIRECTFAIL','82751134892352','<[email protected] server>','System.String[]','System.String[]','6679','1',','Welcome to 3CX Phone System for Windows!','[email protected]','[email protected]','Originating',',',','None','System.Collections.Generic.KeyValuePair`2[System.String,System.Object][]'
'exchange server','8e73a58f-53d5-4e5c-9889-e6a0afe58464','False','4/20/2016 10:55:36 AM','192.168.100.131','exchange server','192.168.100.131','elijah','08D3628D1D7B138B;2016-04-20T17:50:00.583Z;15','ELIJAHDefault ELIJAH','SMTP','RECEIVE','82751134892352','<[email protected] server>','System.String[]','System.String[]','6679','1',','Welcome to 3CX Phone System for Windows!','[email protected]','[email protected]','Originating',','192.168.100.129','0cI: ','None','System.Collections.Generic.KeyValuePair`2[System.String,System.Object][]'
'exchange server','8e73a58f-53d5-4e5c-9889-e6a0afe58464','False','4/20/2016 10:55:36 AM',','elijah',',',',','AGENT','AGENTINFO','82751134892352','<[email protected] server>','System.String[]','System.String[]','12329','1',','Welcome to 3CX Phone System for Windows!','[email protected]','[email protected]','Originating',','192.168.100.129',','None','System.Collections.Generic.KeyValuePair`2[System.String,System.Object][]'

3cx Windows Client Download


'exchange server','8e73a58f-53d5-4e5c-9889-e6a0afe58464','False','4/20/2016 10:55:36 AM','192.168.100.131','elijah','192.168.100.131','exchange server',';250 2.0.0 OK;ClientSubmitTime:','Intra-Organization SMTP Send Connector','SMTP','SEND','82751134892352','<[email protected] server>','System.String[]','System.String[]','12534','1',','Welcome to 3CX Phone System for Windows!','[email protected]','[email protected]','Originating',',','2016-04-20T17:55:36.248Z;LSRV=exchange server:TOTAL-HUB=0.406 SMRDE=0.002 SMRCL=0.098 SMRC=0.099 SMR=0.102 CATSM-Malware Agent=0.041 CATSM=0.042 CRSL=0.010 CATRS-Transport Rule Agent=0.001 CATRS-Index Routing Agent=0.049 CATRS=0.052 CATRT-Journal Agent=0.005 CATRT=0.006 CAT=0.114 SMSC=0.013 SMSMBXD=0.158 SMS=0.177','00:00:00.4220000','LocalServer','System.Collections.Generic.KeyValuePair`2[System.String,System.Object][]'

3cx Client For Windows 10

'exchange server','8e73a58f-53d5-4e5c-9889-e6a0afe58464','False','4/20/2016 10:55:36 AM',','exchange server',','elijah','08D3628D2725EF25;2016-04-20T17:55:36.514Z;ClientSubmitTime:',','STOREDRIVER','DELIVER','82751134892352','<[email protected] server>','System.String[]','System.String[]','12534','1',','Welcome to 3CX Phone System for Windows!','[email protected]','[email protected]','Originating',','192.168.100.129','2016-04-20T17:55:36.248Z;SRV=exchange server:TOTAL-FE=0.015 SMREH-Inbound Trust Agent=0.004 SMREH=0.004 SMRPI-FrontendProxyAgent=0.007 SMRPI=0.007 SMR=0.015;SRV=exchange server:TOTAL-HUB=0.234 UTH=0.005 SMRDE=0.002 SMRCL=0.098 SMRC=0.099 SMR=0.102 CATSM-Malware Agent=0.041 CATSM=0.042 CRSL=0.010 CATRS-Transport Rule Agent=0.001 CATRS-Index Routing Agent=0.049 CATRS=0.052 CATRT-Journal Agent=0.005 CATRT=0.006 CAT=0.114 QDM=0.016;SRV=exchange server:TOTAL-DEL=0.171 UTH=0.004 SMRDI=0.014 SMR=0.014 SDDCC=0.004 SDDR=0.009 SDDPM-Conversations Processing Agent=0.003 SDDPM-People I Know Classification Agent=0.001 SDDPM-Mailbox Rules Agent=0.080 SDDPM=0.086 SDDR=0.029 SDDAD=0.010 SDDS=0.016 SDD=0.155','00:00:00.4220000','EndToEnd','System.Collections.Generic.KeyValuePair`2[System.String,System.Object][]'