Added
Native e-mail / SMTP notifications (#2). A real e-mail channel alongside Telegram, Discord and generic webhooks — for "updates available", update results, and other notifications.
Configure with SMTP_HOST + SMTP_FROM + SMTP_TO (plus optional SMTP_PORT, SMTP_USER, SMTP_PASSWORD, SMTP_TLS):
SMTP_TLS=starttls(default, 587),ssl(implicit TLS, 465), ornone(plain/relay)SMTP_TOaccepts a comma-separated listBOT_LABELis applied to the subject so multi-host setups stay distinguishable
Built on the standard library (smtplib) — no new dependency — respects quiet hours / maintenance like the other channels, and sends best-effort (failures are logged, never crash an update).