Dears,

I have an Exchange server 2013 Enterprise edition , I can sent to outside domain such as Yahoo, Gmail , But I couldn't revive from out side domain ? 

For that reason, We are  configured Office 365 to fix it , now is fixed after enable office 365 , 

BUT, Now I want to decommission  my Exchange sever 2013 on office 365, and keep only my Exchange 2013 and remove office 365,

 So, the first I need to mail flow working fine (Send & Receive mail with out any issue) , Then I will make decommission  of Office 365 

Thanks in advanced

Dear , 

the following error message I revived when I send mail form External domain (Yahoo , Gmail , ..etc)

Sorry, we were unable to deliver your message to the following address.

<testcon@Xyz.org>:
Remote host said:
550 5.4.1 [test@Xyz.org]: Recipient address rejected: Access denied  [RCPT_TO]

--- Below this line is a copy of the message.

Received: from [98.137.12.56] by nm5.bullet.mail.gq1.yahoo.com with NNFMP; 28 Aug 2015 09:30:20 -0000
Received: from [208.71.42.205] by tm1.bullet.mail.gq1.yahoo.com with NNFMP; 28 Aug 2015 09:30:19 -0000
Received: from [127.0.0.1] by smtp216.mail.gq1.yahoo.com with NNFMP; 28 Aug 2015 09:30:19 -0000
X-Yahoo-Newman-Id: 983649.3981.bm@smtp216.mail.gq1.yahoo.com
X-Yahoo-Newman-Property: ymail-3
X-YMail-OSG: nse2rncVM1kOwLWdp4eMqK7AO9ybydFgQrrPC5WuM7d2hCb
 xVojpXILQ1JepVwH3Cni4jJE2..dqhIbgc_Lur1mwTyejOk8nHFgI1rII_2d
 l2t0qfaJmd0nsDlP7YWXZu5qe73bz_bCn4Ws6ggx7WG4wzLR8GX8VkikF9NV
 0yuGMydpis92w4fRk932W4Mo8P77qYMXKjIRq0D.FToAOKN3JAylqU2iUskx
 UijXIVG5ZdJ52QBaS9WVp_7RvWfOLqaLCicnNWuOwkwHPpbQCqJIfO8g7tM5
 3hVaFwV7IzIVcjAagcsklAjj.UgCRW_bU53nNBU22umqGDBgtklnDraA_Xck
 C7.XV2nSBjMgKcAU6jmtTelO4kIuCQDi03gJ9vPRkjD6qEspkxRGTtR2sOdK
 JK_2UFA33rtLNgTC9GvJyYKL1G_NG81RkpcXoEwi0w9LE6rzKgRbbkKv5Upb
 6W29pzZ3iWfBNWgjuZizyo4Fd8LsQl49Ftu2S.bt34GrGK0IgANRSfdyl70h
 zOYcaiYCmsT_r4t2W81nLbLeLjLfETQbxDyqwSJbIoiL8PNPQakfN6UFVnuj
 w6M_iZVMQ
X-Yahoo-SMTP: K79PBCOswBBpE_Vh7I_QfqyybKV0TR7RfA--
From: "Abcd" <Abcd@yahoo.com>
To: "'Testcon'" <testcon@Xyz.org>
References: <1fb51f17da8d44cba68dce516b8b3132@EXCH.Xyz.org.iq>
In-Reply-To: <1fb51f17da8d44cba68dce516b8b3132@EXCH.XYZ.org.iq>
Subject: RE: Test
Date: Fri, 28 Aug 2015 12:30:12 +0300
Message-ID: <000401d0e174$2a9a36f0$7fcea4d0$@yahoo.com>
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0005_01D0E18D.4FE7E420"
X-Mailer: Microsoft Outlook 15.0
Thread-Index: AQGZxZDABn/vqVgNfKAww2k22oU74J6PXR5A
Content-Language: en-us

This is a multipart message in MIME format.

------=_NextPart_000_0005_01D0E18D.4FE7E420
Content-Type: text/plain;
charset="utf-8"
Content-Transfer-Encoding: quoted-printable

reply

=20

Dear , 

the following error message I revived when I send mail form External domain (Yahoo , Gmail , ..etc)

Sorry, we were unable to deliver your message to the following address.

<testcon@Xyz.org>:
Remote host said:
550 5.4.1 [test@Xyz.org]: Recipient address rejected: Access denied  [RCPT_TO]

--- Below this line is a copy of the message.

Received: from [98.137.12.56] by nm5.bullet.mail.gq1.yahoo.com with NNFMP; 28 Aug 2015 09:30:20 -0000
Received: from [208.71.42.205] by tm1.bullet.mail.gq1.yahoo.com with NNFMP; 28 Aug 2015 09:30:19 -0000
Received: from [127.0.0.1] by smtp216.mail.gq1.yahoo.com with NNFMP; 28 Aug 2015 09:30:19 -0000
X-Yahoo-Newman-Id: 983649.3981.bm@smtp216.mail.gq1.yahoo.com
X-Yahoo-Newman-Property: ymail-3
X-YMail-OSG: nse2rncVM1kOwLWdp4eMqK7AO9ybydFgQrrPC5WuM7d2hCb
 xVojpXILQ1JepVwH3Cni4jJE2..dqhIbgc_Lur1mwTyejOk8nHFgI1rII_2d
 l2t0qfaJmd0nsDlP7YWXZu5qe73bz_bCn4Ws6ggx7WG4wzLR8GX8VkikF9NV
 0yuGMydpis92w4fRk932W4Mo8P77qYMXKjIRq0D.FToAOKN3JAylqU2iUskx
 UijXIVG5ZdJ52QBaS9WVp_7RvWfOLqaLCicnNWuOwkwHPpbQCqJIfO8g7tM5
 3hVaFwV7IzIVcjAagcsklAjj.UgCRW_bU53nNBU22umqGDBgtklnDraA_Xck
 C7.XV2nSBjMgKcAU6jmtTelO4kIuCQDi03gJ9vPRkjD6qEspkxRGTtR2sOdK
 JK_2UFA33rtLNgTC9GvJyYKL1G_NG81RkpcXoEwi0w9LE6rzKgRbbkKv5Upb
 6W29pzZ3iWfBNWgjuZizyo4Fd8LsQl49Ftu2S.bt34GrGK0IgANRSfdyl70h
 zOYcaiYCmsT_r4t2W81nLbLeLjLfETQbxDyqwSJbIoiL8PNPQakfN6UFVnuj
 w6M_iZVMQ
X-Yahoo-SMTP: K79PBCOswBBpE_Vh7I_QfqyybKV0TR7RfA--
From: "Abcd" <Abcd@yahoo.com>
To: "'Testcon'" <testcon@Xyz.org>
References: <1fb51f17da8d44cba68dce516b8b3132@EXCH.Xyz.org.iq>
In-Reply-To: <1fb51f17da8d44cba68dce516b8b3132@EXCH.XYZ.org.iq>
Subject: RE: Test
Date: Fri, 28 Aug 2015 12:30:12 +0300
Message-ID: <000401d0e174$2a9a36f0$7fcea4d0$@yahoo.com>
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0005_01D0E18D.4FE7E420"
X-Mailer: Microsoft Outlook 15.0
Thread-Index: AQGZxZDABn/vqVgNfKAww2k22oU74J6PXR5A
Content-Language: en-us

This is a multipart message in MIME format.

------=_NextPart_000_0005_01D0E18D.4FE7E420
Content-Type: text/plain;
charset="utf-8"
Content-Transfer-Encoding: quoted-printable

reply

=20

since it works going through o365 and not your internal email server, their must be something going on the exchange server itself.  do you have any AV or other intrusion protection stuff installed?

Hi Moon,

Thank you for your question. 

By my understand, if we receive email from external, we should register mail.xyz.org and A record in ISP, then we could run telnet mail.xyz.org 25from external to check if It is successfully to telnet.

Then we could add yahoo to whitelist or disable A/V to check if we could receive external emails.

Using the following link to test inbounding message flow:

https://testconnectivity.microsoft.com/ 

If there are any questions regarding this issue, please be free to let me know.

Best Regard,

Jim

Dear Moderator,

Actually still I facing the same issue , I have the three Send connector in three sections:

1- On Exchange server, I have Send connector to Use MX record

2- On Office 365 connector , I have two connector as below Pic, (One from My Exchange to office 365, Second from Office 365 to My Exchange server ,

3- For MX record I have the MX record :Mydomain-org.mail.protection.outlook.com

what are the process to remove office 365 and keep only Exchange server ?

what should I do or change on Public DNS ? and my Exchange server connectors 

Hi Moon,

By your post, we know you want to remove office365. If that, first of all, we should contact ISP to change MX record to point to Exchange server instead of office 365.

Then we should change receive connector and send connector.

Finally, we could remove Office365 after we test message flow without any problems.

If there are any questions regarding this issue, please be free to let me know.

Best Regard,

Jim

Dear Moderator,

Could you give more detail about how will be and change the MX record from ISP? and A records regarding my domain?

Thanks in advanced,

 

Hi Moon,

We could change MX record into mail.immdf.org and point it to on-premise IP address.

The same ways for A record and autodiscover record to point to local instead of Exchange online.

Notice: we suggest you do this change out of production time.

If there are any questions regarding this issue, please be free to let me know.

Best Regard,

Jim