Microsoft has added SMTP MTA Strict Transport Security (MTA-STS) support to Exchange Online to ensure Office 365 customers' email communication integrity and security. "We have been validating our ...

I have a exchange setup and everything is working fine. When I setup IMAP (since all clients do not support RPC over HTTP), I specify IMAP and for security I have to choose SSL or TSL, but for SMTP I ...

Exchange Online users soon will be getting some security enhancements that will enforce the use of Transport Layer Security (TLS) encryption for e-mails and ward off so-called "man-in-the-middle" ...