Dears, 

I couldn't received mail from outside domain such as Yahoo, Gmail ,etc

the followingout put of Recive connector :



Hello

test exchange inbound email with https://testconnectivity.microsoft.com/ Inbound SMTP Email</label> and share logs

First of all, do you have MX record defined for your email domain? If yes, what does it resolves to?

Thanks for reply,

I forget to mention we have mail flow to smart host Office 365 , as attached file,

So, now I want to make mail flow pass through only Exchange sever and decommission and remove office 365,

Thanks in advanced 

Thanks for reply,

Yes I have MX record, and the following resolve it :

C:\Users\Admin>nslookup XYZ.org
Server:  google-public-dns-a.google.com
Address:  8.8.8.8

Non-authoritative answer:
Name:    XYZ.org
Address:  185.34.18.138

Hello

go to ecp and check connectors

Thanks for reply,

Yes I have MX record, and the following resolve it :

C:\Users\Admin>nslookup XYZ.org
Server:  google-public-dns-a.google.com
Address:  8.8.8.8

Non-authoritative answer:
Name:    XYZ.org
Address:  185.34.18.138

I didn't see what the MX resolves to. By right, it should be resolve to an A record. Do you mind to let me know what is your email domain so that I can do DNS lookup?

Hi,

According to you post, I notice that the MX record for immdf.org remain point to Office 365.

Do you modify the settings in On-premise environment before this issue arise?

By default, we have two option for transport routing in Hybrid environment, keep your MX record pointed to your on-premises organization or point your MX record to the EOP service in the Office 365 organization. Meanwhile, we need relevant connector for mail flow between On-premise and Office 365. For your reference:
https://technet.microsoft.com/en-us/library/jj659050(v=exchg.150).aspx
https://technet.microsoft.com/en-us/library/ms.exch.eac.connectorselection(v=exchg.150).aspx

For your question, We need to modify the MX record to point to On-premise instead of Office 365, also configure connector to inbound and outbound, relevant connector to Office 365.

Thanks for Reply,

My Mail domain testcon@immdf.org

thanks,

Dears,

The following Public hosts,

What I should change to be change the MX record from Office 365 to my Exchange server 2013 

• Edited by Moon zoro 15 hours 36 minutes ago

Thanks for Reply,

Yes, After I change the MX record , I couldn't received mail from External domain ,

any help,

Dears,

Kindly , the following Connector Pic on Office 365,

Dears,

The following Public hosts,

What I should change to be change the MX record from Office 365 to my Exchange server 2013 

• Edited by Moon zoro Monday, August 31, 2015 3:53 PM

Thanks for Reply,

My Mail domain testcon@immdf.org

thanks,

At the time of this post, your MX record points to Office 365.

Hello

and your domain internal relay?