do we support TLS 1.3 in Microsoft SMTP Server

Imdad Ali 20 Reputation points
2023-12-01T05:36:04.4366667+00:00

Need some details on tls 1.3 with Microsoft SMTP Server

Exchange Online
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  1. Yuki Sun-MSFT 41,376 Reputation points Moderator
    2023-12-01T08:48:52.8133333+00:00

    Hi @Imdad Ali ,

    do we support TLS 1.3 in Microsoft SMTP Server

    If by Microsoft SMTP Server you mean "Exchange Online", no, currently there's no information or official announcement about the supportability of TLS 1.3.

    If you are talking about on-premises Exchange like Exchange 2019, it's not yet supported either at this time. Below are some links for reference:


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