The ban means Richardson's photography will no longer appear in (or "will be substituted" in) Condé Nast publications including Vogue, GQ, Vanity Fair and more. "Condé Nast would like to no longer work with the photographer Terry Richardson".
The piece questioned why the fashion industry still celebrated a man "who has been the subject of widespread allegations of sexually abusing models over many years". A spokesperson at the time dismissed Appleton's allegations as not accurate.
Accusation of harassment and sexual exploitation by models have followed Richardson throughout his career, which he has always denied.
Magazine editors were apparently told that they were not to hire Richardson for future projects and that any work yet to be published from him must be "killed or substituted with other material". Richardson, who's known for his sexually provocative work, has been accused of sexual assault in the past, but to date no criminal charges have ever been filed against him.
After the controversy in 2014, Vogue said the mag had "no plans to work with him in the future". Conde Nast International did not immediately return request for comment. Condé Nast said they would not be releasing a statement on the issue. "I have never used an offer of work or a threat of rebuke to coerce someone into something that they did not want to do".
A representative for Richardson says in a statement, "Terry is disappointed to hear about this email especially because he has previously addressed these old stories".
"I give everyone that I work with enough respect to view them as having ownership of their free will and making their decisions accordingly, and as such, it has been hard to see myself as a target of revisionist history", Richardson said in letter published on the Huffington Post at the time.
Despite years of allegations about his behaviour, he has photographed everyone from Barack Obama to Oprah Winfrey and Kate Moss, and has directed music videos such as Miley Cyrus's Wrecking Ball and Beyoncé's XO.