How to connect a database replicated from another server to OWA?

Question

Email

The problem is this: When a user whose mailbox is located in the Remote.mdb database enters through OWA, he sees a message:
In Russian :
Changing the server configuration temporarily prevents access to this account. Close all web browser windows and try again in a few minutes. If the problem persists, contact support.
In English:
A server configuration change is temporarily preventing access to your account. Please close all Web browser windows and try again in a few minutes. If the problem continues, contact your helpdesk.
Parameters in Server Configuration->Client Access

Answer 1

The task is formulated incomprehensibly, while one thing is clear, in vain you started to register SMTP transport for replication in AD S&S, you will also end up with a problem with AD replication, despite the familiar SMTP abbreviation, this entry has nothing to do with OWA. Here is a useful article on how CAS redirection works in a multisite environment goo.gl/z1MOsI You need to read and understand. And it's better not to touch AD replication =)
PS
Specifically, in your situation, it turns out that when accessing a mailbox through OWA located in another site - the CAS server sees that the External URL is registered on the remote server - https://smtp.domain.local , and it is main server from https://main.domain.local/ will redirect to https://smtp.domain.local/.