Dylan Hartley has the right to appeal against his 11 week ban.
The Saints captain was sent off for allegedly calling referee Wayne Barnes a "f****** cheat" just before half-time in Leicester's 37-17 victory at Twickenham.
The RFU confirmed the suspension rules Hartley out of the Lions tour.
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Police have thanked fans from Norwich andIpswich for showing "good spirit” the East Anglian derby match.
Outbreaks of rain and drizzle clearing eastwards by around midnight.
A gin distillery in Northamptonshire has won a prestigious award from the Countryside Alliance.