Fix task error email notification sender fallback to connection and provider defaults - #72745
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September 8, 2026 21:05
…rovider defaults In Task SDK, _send_error_email_notification passed a hardcoded fallback string 'airflow@airflow' when [email] from_email was not configured. This bypassed provider-specific defaults (such as SendGrid's SENDGRID_MAIL_FROM env var or SES sender verification) when using _LegacyEmailBackendNotifier, and prevented SmtpNotifier from reaching its connection-extra fallback branch. Default from_email extraction to None so backends and notifiers can resolve their own sender defaults.
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In Task SDK, _send_error_email_notification passed a hardcoded fallback string 'airflow@airflow' when [email] from_email was not configured. This bypassed provider-specific defaults (such as SendGrid's SENDGRID_MAIL_FROM env var or SES sender verification) when using _LegacyEmailBackendNotifier, and prevented SmtpNotifier from reaching its connection-extra fallback branch.
Default from_email extraction to None so backends and notifiers can resolve their own sender defaults.
Was generative AI tooling used to co-author this PR?
{pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.