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Exchange not sending out email via my 3cx phone system

I am running exchange 2013, with the newest CU updates. I am running 3cx as my phone system,
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.
Elijah is my exchange server.

"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","<c1ab36ffd8a540cab6ad3866a6e3c052@exchange server>","System.String[]","System.String[]","6679","1","",,"Welcome to 3CX Phone System for Windows!","pbx@mydomain.org","pbx@mydomain.org","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","ELIJAH\Default ELIJAH","SMTP","RECEIVE","82751134892352","<c1ab36ffd8a540cab6ad3866a6e3c052@exchange server>","System.String[]","System.String[]","6679","1","",,"Welcome to 3CX Phone System for Windows!","pbx@mydomain.org","pbx@mydomain.org","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","<c1ab36ffd8a540cab6ad3866a6e3c052@exchange server>","System.String[]","System.String[]","12329","1","",,"Welcome to 3CX Phone System for Windows!","pbx@mydomain.org","pbx@mydomain.org","Originating","","192.168.100.129","",,"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","elijah","192.168.100.131","exchange server",";250 2.0.0 OK;ClientSubmitTime:","Intra-Organization SMTP Send Connector","SMTP","SEND","82751134892352","<c1ab36ffd8a540cab6ad3866a6e3c052@exchange server>","System.String[]","System.String[]","12534","1","",,"Welcome to 3CX Phone System for Windows!","pbx@mydomain.org","pbx@mydomain.org","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][]"
"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","<c1ab36ffd8a540cab6ad3866a6e3c052@exchange server>","System.String[]","System.String[]","12534","1","",,"Welcome to 3CX Phone System for Windows!","pbx@mydomain.org","pbx@mydomain.org","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][]"

Phonebuff

So,

This is a very poor way to post data --

Exchange seems happy to a point -- 250 2.0.0 OK;
***

But it may not be setup to relay for what 3CX defaulted - pbx@mydomain.org

----

Dan

ASKER

It worked fine weeks ago and I haven't made any changes that I'm aware of.

Is there some other logs I can look into, because exchange is sending out emails and receiving emails, both internally and externally as well.

ASKER CERTIFIED SOLUTION

Phonebuff

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Dan

ASKER

The log I posted was from exchange.

Dan

ASKER

I wanted to give you the points for assisting.

The problem was that when I did the test, with both users, they had automatic rules moving emails from the PBX to a folder in their inbox. So it looked like the PBX was not sending out those emails, but in fact it was.

Thanks for your help.