After being grilled by a Senate committee and being pressured into resigning by prime minister of Australia Scott Morrison, an independent investigation later reported that she had done nothing wrong.

[9] During her 12 years at Cable & Wireless, Holgate directed the company’s marketing department,[9] and conducted projects across Caribbean, Europe and Hong Kong.

[8] While she continued to lead its marketing team, Holgate's role was expanded into building Telstra's business sales and managing the operations of its channels.

[8][14] In 2008, Holgate left Telstra to join health supplements company Blackmores[12][15] as chief executive officer and managing director.

[8][20] She explained the phrase was quoted out of context, having said that the proposal "would add the "Coke and fries" to the prescribed medication, and provide pharmacies with a "new and important revenue stream".

[21][22][23] To help increase sales of Blackmores in the Chinese market, she was photographed with the president of China Xi Jinping and Australian prime minister Tony Abbott.

[23] In September 2015, Blackmores joined the ASX200 index, comprising the top 200 most prominent companies in Australia,[26] and Christine Holgate was named the first female CEO of the Year in November.

[3] Holgate had transformed Blackmores, a member of the Council for Responsible Nutrition (CRN),[29] into the major health supplement exporter to Asia.

[1] Before her arrival, Australia Post had divided its business into two product lines, the profitable transport and logistics operation StarTrack and the traditional postal service.

[1] After consulting staff, Holgate received agreement to unify the two businesses,[38] which was done preserving traditional red livery and name Australia Post.

[1] In 2018, Holgate launched the "Everyone Matters" promotion, an advertising campaign supporting postal workers and post offices in regional areas.

[39][40] During the COVID-19 pandemic, Holgate had to deal with a number of problems at Australia Post, including significant delays and cuts in service,[41][42] allegations of the intrusive surveillance of staff,[43] the planned payment of executive bonuses at a time when public servants were expected to take pay cuts,[44] a bipartisan Senate committee accusing Holgate of attempting to avoid parliamentary scrutiny of Australia Post,[45] and Holgate's personal intervention in the attempted delivery of Pauline Hanson's One Nation-branded stubby holders to locked-down public housing towers in Melbourne after Hanson made inflammatory comments about tower residents.

[46] Further controversy arose when Holgate revealed at an appearance before a Senate committee on 22 October 2020 that Australia Post had purchased four Cartier watches valued approximately around $20,000 in total as gifts for senior management executives who secured a lucrative deal with three Australian banks.

[48] A subsequent report by law firm Maddocks, commissioned by the government, found that no specific policy that would support provision of Cartier watches had been identified, and that there was no evidence of fraud or corruption.

[1][16][59] She has a close relationship with her nephews Brian and Eddie, the sons of Holgate's late sister, Elizabeth,[16] which was the reason for the wedding being held in England.