Royal Mail delivery delays are reported in multiple postcode areas across the UK, affecting mail delivery for residents and businesses. WalesOnline says delays hit 18 Welsh postcodes on the day in question, while the Daily Express reports delays in 142 UK postcodes more broadly.

The outlets provide lists of affected areas, but they differ in how widely they frame the disruption: WalesOnline focuses specifically on Wales, while the Daily Express covers the full set of postcode locations across the UK. Both accounts indicate the same type of operational problem—delayed delivery—without detailing specific causes in the provided information.

Overall, the reporting aligns on the presence of delivery disruption in named postcode areas, with the difference mainly being geographic scope and the number of postcodes included. The full impact depends on where a household or business is located within the listed postcode districts, as published by each outlet.