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Advice on Sophos Email Appliance in O365 Hybrid Migration Scenario

Hello,

We are currently running Exchange 2010 with Sophos Email Appliance v4.5.3.0.
The Sophos box is basically used to receive and scan emails from the Internet before passing it to Exchange Server.
It is not involved in sending emails from Exchange Server.

We are planning to migrate to O365 using Hybrid mode.
I read from the Internet that O365 does not support any 3rd party product that sits between On-Premise Exchange Server and O365.
if that is true, does it mean we have to remove the Sophos Email Appliance before we migrate?

Any advice or guidance on this?

Thanks.

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0 Jaydeep over 4 years ago

Hi John Lee3

Does this article help Sophos Email Appliance: How to setup relay control for O365 or other cloud email providers ?

Regards

Jaydeep
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0 John Lee3 over 4 years ago in reply to Jaydeep

Hi Jaydeep,

I think the article wasn't really addressing what I want.

Currently, the mail flows like this.

Inbound from Internet
Internet --> Sophos Email Appliance --> Edge Server --> Mail Server

Outbound to Internet
Mail Server --> Edge Server --> Internet

Because:

1) We want to keep Sophos Email Appliance to filter incoming emails;
2) Office 365 does not support anything between Office 365 and the On-premises Exchange server and;
3) With reference to the following article: https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/manage-mail-flow-on-office-365-and-on-prem

I come up with:

Inbound from Internet
Internet --> Sophos Email Appliance --> O365 --> Edge Server --> Mail Server

Will this work?
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