Another e-mail from Maori Party MP Hone Harawira containing expletives has emerged.
It was written in July and came to light on Wednesday when papers about the consultation over which Maori flag to fly on Waitangi Day were released by Minister of Maori Affairs Pita Sharples under the Official Information Act.
In the email, Mr Harawira used obscenities in attacking a range of officials involved in the consultation process.
The MP was upset the group had rebranded what he called the Maori flag as the Tino Rangatiratanga flag.
His outburst prompted intervention from the minister's office and senior officials apologised for his comments.
A few days later Mr Harawira e-mailed the group of officials congratulating them on their work.
He also thanked them for "not freaking out when I nut out".
Email sparked accusations of racism
Mr Harawira was raked over the coals later this year for language he used in an email to a former director of the Waitangi Tribunal Buddy Mikaere.
He sent the message in reply to Mr Mikaere questioning who paid for his wife on a controversial side trip to Paris.
Mr Harawira paid for the trip himself, but it meant he missed a meeting at the European Parliament in Brussels.
The MP was also criticised for racism because in the email he used obscene language in relation to white people who he said had been "raping our lands and ripping us off for centuries".