BBC treats it with a light touch. Read between the lines.
Most believe it was hacked by agents of Russia and it may well have been. But we know Wikileaks got a large portion of the emails.
The corrupt biased Strzok was put in charge of investigating it and it's obvious he didn't want to find any fault and to minimize what he did find.
FBI director James Comey announced the results of a separate FBI investigation on 5 July and concluded that that while "there is evidence of potential violations" of criminal statues covering the mishandling of classified information, "our judgement is that no reasonable prosecutor would bring such a case". It referred the matter to the Justice Department, which closed the case against Mrs Clinton and her aides with no charges.
Comey, then covering his own rear, came up with some cockamamie conclusions when new info came out in the two months preceding the election. This didn't endear him with Democrats who wanted him fired at that time, before they called firing him later a travesty.
When it came out that Trump also uses private email, Dems jumped on it quick... but they're no where near the same.