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c49f0d162b
Rework the SMTP client from fire-and-forget sending into a persistent queue with exponential backoff and per-message retry budget, backed by the existing database rows as the durable source of truth. - Keep pending emails in an in-memory queue with attempts/backoff tracking; enqueue without deleting database rows, and only remove the row once delivery is confirmed via the mailDelivered signal. - Add exponential backoff (doubling, capped at 30 min) between delivery attempts, bounded by new smtp/maxretries and smtp/retrydelay settings. - Track connection-layer failures (connect/auth/encrypt) with their own backoff; route failures to recordFailed/recordConnectionFailure so undeliverable mail eventually drops from the queue instead of retrying forever. - Treat rejected recipients/senders as permanent failures. - Rebuild the SMTP buffer from the authoritative queue before each send via a new QxtSmtp::reset() so reconnects never duplicate deliveries. - Start the idle timeout after authentication, not on TCP connect, so slow SSL/STARTTLS handshakes are not cut short. |
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| docker | ||
| migrations | ||
| mysql-storage | ||
| resources | ||
| scripts | ||
| src | ||
| check_schema_version.sh | ||
| CMakeLists.txt | ||
| servatrice.desktop | ||
| servatrice.ini.example | ||
| servatrice.qrc | ||
| servatrice.rc | ||
| servatrice.sql | ||