I'm using Windows 11 which should be fine, but if Thunderbird is set to TLS Minimum 3 will it still use the required 1.2 for IMAP Servers? I'm currently using IMAP Server for a msn.com email address. Will I still be able to get my email in Thunderbird after this change? We have already disabled TLS 1.0 and 1.1 for most Microsoft 365 services in the worldwide environment. We will enforce TLS 1.2 moving forward to provide enhanced encryption and help ensure your emails are received more securely. POP3 and IMAP4 are the client/server protocols for receiving emails. Any version of Thunderbird distributed on Uptodown is completely virus-free and free to download at no cost. Any version of Thunderbird distributed on Uptodown is completely virus-free and free to download at no cost. Download rollbacks of Thunderbird for Windows. TLS is a standard protocol used to provide secure web communications for POP3 and IMAP4. It includes all the file versions available to download off Uptodown for that app. I looked in the Thunderbird Configuration Editor () and it's set to a minimum of 3.įrom Microsoft: Starting on December 01, 2022, Office 365 will begin retiring Transport Layer Security (TLS) 1.0 and 1.1 for POP3 and IMAP4. Select File-New-Existing Mail Account from the menu bar or click the AppMenu button and select New Message-Existing Mail Account and follow the instructions in the linked article. Received an email from Microsoft telling me as of December 1st, 2022 they will no longer support TLS 1.0 and 1.1 for IMAP Servers for email clients.
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