Can't send to recipients in Office 365 from on premises
I have a test recipient in Office 365 that can send email to me (my mailbox is on premises) but I cannot send emails to it. All of the emails get caught on the edge transport with a loopback error. 

I only have the 2 default send connectors configured when I configured EdgeSync (ADsite to internet and Internet to ADsite). Do i need to specify something on these connectors?
February 9th, 2015 12:34pm

hi,

if user is created directly in the cloud you could have an issue with mailflow.

Can you try to send from a gmail/hotmail account to see if user receives it?

Free Windows Admin Tool Kit Click here and download it now
February 9th, 2015 4:02pm

Hi snorri788,

According to your description, I understand user host by on-premises cannot send message to Office 365.
If I misunderstand your concern, please do not hesitate to let me know.

As Off2work mentioned, please try to confirm whether all user host by on-premises can send message to external account.
How about the OWA?
Is there any firewall or defender software in your environment?

We can use Microsoft Remote Connectivity Analyze to double confirm external mail flow:
https://testconnectivity.microsoft.com/

Meanwhile, run Message tracking log and post related error message for further troubleshooting.

Best Regards,
Allen Wang

February 10th, 2015 4:41am

User was created on-premises and then moved to the cloud.

I can email to/from gmail to the office 365 user OK

Free Windows Admin Tool Kit Click here and download it now
February 10th, 2015 6:24am

Here is a test message that I sent from my on premises account to the office 365 account.

Subject           : test 1121
InternetMessageId : <F201D6A765662D41BACA83D9CC9CA25D4C932B58@shr1mx12>
FromAddress       : onpremises-user@contoso.com

Status            : Retry
Size              : 15.13 KB (15,496 bytes)
MessageSourceName : SMTP:Default internal receive connector ALTMG02
SourceIP          : 192.168.101.114
SCL               : -1
DateReceived      : 10/02/2015 11:21:05
ExpirationTime    : 12/02/2015 11:21:05
LastError         : A local loop was detected.
RetryCount        : 0
Recipients        :
ComponentLatency  :
MessageLatency    : 00:00:25.4687500
DeferReason       : Loop Detected
Priority          : Normal
MessageIdentity   : EDGE02\Submission\6608870
Queue             : EDGE02\Submission
Identity          : EDGE02\Submission\6608870
IsValid           : True

February 10th, 2015 6:27am

This topic is archived. No further replies will be accepted.

Other recent topics Other recent topics