Can you resend to a bounced address if it’s temporary?

• Resending after soft bounce: Yes, with caveats.
• Appropriate retry:
• Soft bounces (4xx) invite retry. System should automatically queue for retry. Exponential backoff prevents flooding.
• Tracking is essential:
• Count failures per address. Track time since first failure. Monitor for pattern emergence.
• When to stop:
• After N consecutive failures (3-7 typical). After time window exceeded (7-30 days). When error converts to permanent.
• Manual re-sending:
• Generally discouraged. Let automated retry handle it. Override only with good reason.
• Why threshold matters:

Persistent soft bounce indicates real problem. Abandoned mailbox, inactive account. Continued sending wastes resources and reputation.

Retry soft bounces, but do not retry forever. Patience has limits.