[TEST] Plain text email test
From: KK501st
Date: Fri Jun 05 2026 - 13:27:58 EST
安全なメール であるProton Mailで送信済み
Hello,
This is a test message to verify the plain text email configuration.
Please ignore this message.
Thank you.
From: KK501st
Date: Fri Jun 05 2026 - 13:27:58 EST