Exchange Online to Deprecate Legacy TLS for POP3 and IMAP4
Summary
Microsoft will start to refuse IMAP4 and POP3 client connections using legacy TLS versions (1.0 and 1.1) in July 2026.
Description
Microsoft will start to refuse IMAP4 and POP3 client connections using legacy TLS versions (1.0 and 1.1) in July 2026.
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