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@Copilot Copilot AI review requested due to automatic review settings October 14, 2025 18:56
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Pull Request Overview

This PR adds early validation for SMTP SSL/TLS requirements by failing fast when a server doesn't support the EHLO command but SSL is required.

Key Changes

  • Added an early check in SendHello() to detect and fail when SSL is required but the server falls back to HELO (which doesn't support STARTTLS)

@jozkee jozkee added the NO-SQUASH The PR should not be squashed label Oct 14, 2025
@PranavSenthilnathan PranavSenthilnathan added the Servicing-approved Approved for servicing release label Oct 14, 2025
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/ba-g #120380

@PranavSenthilnathan PranavSenthilnathan merged commit 35fe9c6 into dotnet:release/9.0 Oct 14, 2025
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4 participants