asked on

exchange hybrid server moved and banned

Hi Experts,

I have to setup a new mail flow from a new exchange management server.
This server is just management server and relay server.
The server was moved to another location and datacenter. This means the external IP has also changed.

When I send a testmail via telnet I receive an error.

ConnectorId             : Outbound Internet via Office 365
Source                  : SMTP
EventId                 : FAIL
InternalMessageId       : 3105261355011
MessageId               : <d0b8f7c0-8d7e-4f68-a5b3-49b508cd625d@svatsmwmx2.sal.co.at>
NetworkMessageId        : 0c1a26a6-ed0a-4d7f-84d9-08d75959aaf6
Recipients              : {gw@company.com}
RecipientStatus         : {[{LED=550 5.7.606 Access denied, banned sending IP [external ip]. To request removal from this list please visit
                          https://sender.office.com/ and follow the directions. For more information please go to
                          http://go.microsoft.com/fwlink/?LinkID=526655
                          (AS16012609)};{MSG=};{FQDN=company-com.mail.eo.outlook.com};{IP=104.47.1.36};{LRT=10/25/2019 2:43:15 PM}]}

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I went to the site https://sender.office.com/ and tried to remove the IP from the list.

But this is 4 hours ago.
How long does it take ?

Or do you have any other ideas ?

M A

It is straight procedure configure send connector in Exchange. I think you already have it.
in O365 you have to set the onpremise->O365 connector to receive emails from the new IP if the email goes out from O365.
The same way O365--> onpremise connector send email to new IP.

Test the inbound and outbound from testconnectivity.microsoft.com
Post the error if any.

Rajkumar Duraisamy

it may take 24 hours or above to delist .. you need to wait till you receive a confirmation

https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/use-the-delist-portal-to-remove-yourself-from-the-office-365-blocked-senders-lis

Eprs_Admin

ASKER

Hi MAS,

the onprem sendconnector is configured, with the old and new server.
In O365 I haven't configured anything yet.
Can you show mw what to do in O365 ?

SOLUTION

Rajkumar Duraisamy

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M A

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