I've got an Exchange 2007 box with the following error:<br><br>There is no valid SMTP Transport Layer Security (TLS) certificate for the FQDN of mail.domain.com. The existing certificate for that FQDN ...
Microsoft is working on adding SMTP MTA Strict Transport Security (MTA-STS) support to Exchange Online to ensure Office 365 customers' email communication security and integrity. Once MTA-STS is ...
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