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To clarify, should the certificate match the MX record or the hostname? &nbsp;
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To clarify, should the certificate match the MX record or the hostname?  

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I will be trying Self Cert using PTR and will post result
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I will be trying Self Cert using PTR and will post result

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Hello,<br />
<br />
The name of your certificate must match the hostname of your server. Also, you will not be able to use a self-signed certificate to communicate with an external partner.<br />
<br />
JJ
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Hello,

The name of your certificate must match the hostname of your server. Also, you will not be able to use a self-signed certificate to communicate with an external partner.

JJ

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Hi,<br />
<br />
We need to enable TLS via BrightMail to all traffic for a specific external domain. I'm not clear how exactly the CA certificate should be assigned on the BrightMail system. Can this be anything or does it need to match the source MX record? Would like to use the Self Signed certiticate option. 
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Hi,

We need to enable TLS via BrightMail to all traffic for a specific external domain. I'm not clear how exactly the CA certificate should be assigned on the BrightMail system. Can this be anything or does it need to match the source MX record? Would like to use the Self Signed certiticate option. 

BrightMail TLS

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

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.

Exchange

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.