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Are you still using self signed certificate for External emails ?<br />
If yes then even now some new 2016 Exchange server can have problem sending emails to you as they not accepting self signed certificates anymore
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Are you still using self signed certificate for External emails ?
If yes then even now some new 2016 Exchange server can have problem sending emails to you as they not accepting self signed certificates anymore

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If you allow for your CA SSL cert expire on the exchange server, will you continue to still be able to send and receive emails, or will sending and receiving stop. I know you can still send but I'm wondering about receiving.
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If you allow for your CA SSL cert expire on the exchange server, will you continue to still be able to send and receive emails, or will sending and receiving stop. I know you can still send but I'm wondering about receiving.

Exchange 2010 Certs

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.