# Duplicate reports are now discarded

Starting 1 August 2025, **duplicate DMARC and TLSRPT reports are automatically detected and discarded**.

Some email service providers like Google are in fact known to sometimes deliver several copies of the same report, leading to incorrect statistics.

A report is now detected as duplicate **if an identical report was received from the same sender in the previous 24 hours**.

Although the DMARC specification [suggests](https://datatracker.ietf.org/doc/html/rfc7489#section-7.2.1.1) the use of the `Report-ID` for deduplication, some email providers tend to reuse the same IDs over short periods of time, therefore we've opted for a stricter algorithm.