Exim Retries

Default configuration has:

begin retry
# Address or Domain  Error   Retries
# ----------------- ----- -------
*                    *       F,2h,5m; G,16h,30m,1.5; F,1d,4h

What they mean: F,2h,5m : retry every 15 minutes, continue for up to 2 hours. G,16h,30m,1.5 : retry every 30 minutes, then multiply time by 1.5, continue for up to 16 hours. F,4d,4h : retry every 4 hours, continue for up to 4 days.

Check retry rules:

# exim -brt [sender or sender's domain]
exim -brt [email protected]

Detailed description: at lissyara.su