How do I provide the Home Office with evidence to support my asylum claim?

From 23 March 2020 the Home Office has provided dedicated inboxes for the receipt of evidence relating to asylum claims. Until further notice, no documents are to be posted or faxed in.
The emails for various regions of the UK are as follows:
London South East –
Midlands & East
Adults –
Minors –
NE Yorkshire & Humber –
NW (Leeds) Yorkshire & Humber –
North West –
NSA Hub –
Scotland & NI –
Sheffield –
Mersey –
Wales & South West –
Third Country Unit –
NRM Hub –
DAC Harmondsworth –